Category Archives: professional

.net, cloud computing, microsoft, open source, php, professional, software development, web authoring, windows

Would you consider running PHP on Azure? Microsoft faces uphill battle to convince customers.

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Yesterday Microsoft announced Windows Azure SDK for PHP version 3.0, an update to its open source SDK for PHP on Windows Azure. The SDK wraps Azure storage, diagnostics and management services with a PHP API.

Microsoft has been working for years on making IIS a good platform for PHP. FastCGI for IIS was introduced partly, I guess, with PHP in mind; and Microsoft runs a dedicated site for PHP on IIS. The Web Platform Installer installs a number of PHP applications including WordPress, Joomla and Drupal.

It is good to see Microsoft making an effort to support this important open source platform, and I am sure it has been welcomed by Microsoft-platform organisations who want to run WordPress, say, on their existing infrastructure.

Attracting PHP developers to Azure may be harder though. I asked Nick Hines, CTO for Innovation at Thoughtworks, a global IT consultancy and developer, what he thought of the idea.

I’d struggle to see any reason. Even if you had it in your datacentre, I certainly wouldn’t advise a client, unless there was some corporate mandate to the contrary, and especially if they wanted scale, to be running a Java or a PHP application on Windows.

Microsoft’s scaling and availability story around windows hasn’t had the penetration of the datacentre that Java and Linux has. If you look at some of the heavy users of all kinds of technology that we come across , such as some of the investment banks, what they’re tending to do is to build front and middle tier applications using C# and taking advantage of things like Silverlight to get the fancy front ends that they want, but the back end services and heavy lifting and number crunching predominantly is Java or some sort of Java variant running on Linux.

Hine also said that he had not realised running PHP on Azure was something Microsoft was promoting, and voiced his suspicion that PHP would be at a disadvantage to C# and .NET when it came to calling Azure APIs.

His remarks do not surprise me, and Microsoft will have to work hard to persuade a broad range of customers that Azure is as good a platform for PHP as Linux and Apache – even leaving aside the question of whether that is the case.

The new PHP SDK is on Codeplex and developed partly by a third-party, ReadDolmen, sponsored by Microsoft. While I understand why Microsoft is using a third-party, this kind of approach troubles me in that you have to ask, what will happen to the project if Microsoft stops sponsoring it? It is not an organic open source project driven by its users, and there are examples of similar exercises that have turned out to be more to do with PR than with real commitment.

I was trying to think of important open source projects from Microsoft and the best I could come up with is ASP.NET MVC. This is also made available on CodePlex, and is clearly a critical and popular project.

However the two are not really comparable. The SDK for PHP is licensed under the New BSD License; whereas ASP.NET MVC has the restrictive Microsoft Source License for ASP.NET Pre-Release Components (even though it is now RTM – Released to manufacturing). ASP.NET MVC 1.0 was licensed under the Microsoft Public License, but I do not know if this will eventually also be the case for ASP.NET MVC 3.0.

Further, ASP.NET MVC is developed by Microsoft itself, and has its own web site as part of the official ASP.NET site. Many users may not realise that the source is published.

My reasoning, then, is that if Microsoft really want to make PHP a first-class citizen on Azure, it should hire a crack PHP team and develop its own supporting libraries; as well as coming up with some solid evidence for its merits versus, say, Linux on Amazon EC2, that might persuade someone like Nick Hine that it is worth a look.

adobe, development, facebook, flash, microsoft, mobile, nokia, professional, software development, windows

Windows Phone “Mango” shown, looks good but still no Adobe Flash

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I attended the London press briefing for Windows Phone “Mango”, also known as Windows Phone 7.1. This will be on new phones in the Autumn, and will be a free update for all existing Windows Phone 7 devices.

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Microsoft showed a bunch of new features, including Internet Explorer 9 – which, we were told, is built from the same code as the PC version – improved social media integration now including Twitter and LinkedIn as well as Facebook, Hotmail, Exchange, Messenger and Gmail; and multi-tasking support.

Hold down the back key for a moment, and all running apps appear in a tiled view. Just tap the one you want.

We also saw text-to-voice and voice-to-text demos. The presented spoke the reply to a text message, though admittedly he chose to do a one-word reply, and sent it successfully.

Microsoft also announced three new OEM partners, Acer Inc., Fujitsu Ltd. and ZTE Corp.

It looks good; but I did have a sense that Microsoft is ducking the hard questions. One of those concerns Adobe Flash support. At a separate developer briefing, I asked developer relations guy Brandon Watson about Adobe Flash support, observing that when Windows Phone was shown in detail pre-launch at the Mix 2009 conference in Las Vegas, it was clearly stated that Flash would be on the phone, and that Adobe was being allowed to build the Flash runtime in native code, but that it would not be included at launch.

“It does not run on the phone”, said Watson. Then he added, “It does not run on the phone.” Finally, he said, “It does not run on the phone.”

Silverlight does not run in the mobile browser either, so perhaps the problem is with mobile IE – clearly not all the code is included. Or maybe Adobe is hanging back; I asked Adobe about this at Mobile World Congress earlier this year and got an answer that was warmer but no more informative. Or maybe Microsoft is thinking, Apple does not need it, so we do not need it either.

It is a shame though, because there is a perception that Flash is one of the advantages of not going the Apple route.

On the developer side, the beta tools for Mango were released today. You can target either Windows Phone 7.0 or 7.1 with the tools, so if the beta tag does not put you off you can get going straight away. There is a ton of good stuff for developers, including the SQL Server CE local database, and the ability to mix XNA and Silverlight in a single app. We saw an app from British Airways that makes use of this to show a 3D view of an aircraft cabin when choosing a seat; I am not sure how much real value this adds but it demos nicely.

The new emulator includes accelerometer support, so you can simulate movement to test your app’s response.

There is also a profiler which shows your app’s performance in various views. Code that you wrote is highlighted in blue in the graphical view, so you can tell what you can optimise, as opposed to slow system calls that are outside your control.

The developer tools are great though, and having played with a number of mobile developer toolkits I would say that Microsoft’s is among the best and above average, though I would like to see an option for native code development. “We hear that a lot,” Watson told me.

The problem though: developers want a big market, and so far Windows Phone has not delivered it. It is almost invisible on the high street, and all the current operators and manufacturers have other phones that they are more concerned about. That will change when Nokia devices appear, but in an intensively competitive market (not forgetting HP WebOS and RIM Blackberry/QNX/PlayBook) it will not be easy for Microsoft to gain ground.

After the event I discussed this with some of the Microsoft folk. Maybe the company can better exploit the Xbox link, and sell the phone to that community. Maybe Nokia will save the day. Maybe when Microsoft comes out with a fully professional iteration of Windows Phone, tightly linked to Active Directory and group policy, and with additional developer features aimed at line of business apps, maybe then it will take off.

One positive thing I heard today was an anecdotal report that returns on Windows Phone 7 are among the lowest because users like the device so much.

The social features in Windows Phone are already good and will be better in Mango – though bear in mind that by the time Mango phones appear in the Autumn, Microsoft will likely have iPhone 5 and many tempting new Android devices to contend with.

Years ago it used to be said that Microsoft had average products (or worse) but excellent marketing. With Windows Phone, the product is good but either the marketing is lacking or the task is too great. Of course there is still time, and this industry is full of surprises, but it will take more than Mango to make Windows Phone fly.

.net, microsoft, professional, software development, visual studio, windows, windows 7

Cracks appear in Microsoft’s bundled installers for Visual Studio 2010 as I try ADFS

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I am trying out Microsoft Active Directory Federation Services (ADFS), chasing the dream of single sign-on between on-premise Active Directory and the cloud.

Oddly, although ADFS has been around for a while, it feels more bleeding edge than it should. ADFS is critical to Microsoft’s cloud platform play, and it needs to build this stuff right into Windows Server and .NET rather than making it a downloadable add-on.

The big problem with installers, whether on Windows or elsewhere, is dependencies and versions. You get some variant of DLL Hell, when A requires the latest version of B, and C requires an old version of B, and you need both A and C installed. The issue on Windows has reduced over the years, partly because of more side-by-side installations where multiple versions co-exist, and partly because Microsoft has invested huge effort into its installers.

There are still issues though, and I ran into a few of them when trying ADFS. I have Visual Studio 2010 installed on Windows 7 64-bit, and it is up-to-date with Service Pack 1, released in April. However, after installing the Windows Identity Foundation (WIF) runtime and SDK, I got this error when attempting to start Visual Studio:

image

Only some of the Microsoft Visual Studio 2010 products on this computer have been upgraded to Service Pack 1. None will work correctly until all have been upgraded.

I’m guessing that the WIF components have not been updated to take account of SP1 and broke something. Never mind, I found my Visual Studio SP1 .ISO (I avoid the web installs where possible), ran setup, and choose to reapply the service pack. It trundled along until it decided that it needed to run or query the Silverlight 4 SDK setup:

image

A dialog asked for silverlight_sdk.msi. I wasted some time over this. Why is the installer looking for silverlight_sdk.msi in a location that does not exist? I’d guess because the Silverlight SDK installer is wrapped as an executable that unpacked the MSI there, ran it and then deleted it. Indeed, I discovered that both the Silverlight 4 SDK and the Silverlight 4 Tools for Visual Studio are .EXE files that wrap zip archives. You can rename them with a .zip or .7z extension and extract them with the open source 7 Zip, but not for some reason with the ZIP extractor built into Windows. Then you can get hold of silverlight_sdk.msi.

I did this, but then discovered that silverlight_sdk.msi is also on the Visual Studio SP1 ISO. All I needed to do was to point the installer there, though it is odd that it cannot find the file of its own accord.

It also seems to me that this scenario should not occur. If the MSI for installation A might be needed later by installation B, it should not be put into a temporary location and then deleted.

The SPI repair continued, and I got a reprise of the same issue but with the Visual C++ runtimes. The following dialog appeared twice for x86, and twice for x64:

image

These files are also on the SP1 .ISO, so I pointed the installer there once again and setup continued.

Unfortunately something else was wrong. After a lengthy install, the SP1 installer started rollback without so much as a warning dialog, and then exited declaring that a fatal error had occurred. I looked at the logs

I rebooted, tried again, same result.

I was about to trawl the forums, but thought I should try running Visual Studio 2010 again, just in case. Everything was fine.

image

Logic tells me that the SP1 “rollback” was not quite a rollback, since it fixed the problem. Then again, bear in mind that it was rolling back the reapplication of the service pack which is different from the usual rollback scenario.

Visual Studio, .NET, myriad SDKs that each get updated at different times, developers who download and install these in an unpredictable order … it is not surprising that it goes wrong sometimes; in fact it is surprising that it does not go wrong more often. So I guess I should not beat up Microsoft too much about this. Even so this was an unwelcome reminder of a problem I have not seen much in the last few years, other then with beta installs which play by different rules.

.net, apple, development, java, javascript, microsoft, mobile, professional, software development, visual studio, windows

Infragistics: upbeat on Windows Phone but also building for Apple iOS, Google Android

I spoke to Dean Guida, CEO and co-founder of Infragistics, at TechEd in Atlanta earlier this week. Infragistics makes components, mainly for Windows but now beginning to support non-Windows clients. There is a set of jQuery controls in preparation, and “Our roadmaps are also going to deliver native on Android and iPhone,” Guida told me. “We have a lot of software companies that use our tools in their commercial apps, and a lot of enterprises, and we feel that we need to do it,” though he adds, “we feel that the best and the smartest business solution is to go mobile web.”

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Infragistics has a focus on data visualization, and Guida showed me some great-looking components that show animated charts, with a huge range of customisation options, and including geo-spatial and timeline controls.

I was intrigued to find Guida more upbeat about Windows Phone than most commentators, though I make allowance for the fact that his company has a component suite for the platform. “More than half of our customers told us that they’re either building or they will build for Windows Phone in the next 12 months,” he told me.

His view, which I share, is that they key advantage of Windows Phone is to Microsoft-platform enterprises rather than to consumers. “It’s so easy to extend their knowledge of Silverlight and extend apps, that they’ll be able to extend the data and the access to information this way. I think that’s going to be a beachhead for Microsoft.”

Of course Microsoft has marketed Windows Phone to consumers so far, and has told businesses they should continue to use Windows Mobile 6.5, clearly a dead-end. It may be easier when the company is able to move on from this mixed messaging and get behind Windows Phone as a business mobile platform.

Continuing a contrarian theme, Guida is also positive about Windows Presentation Foundation (WPF). “It’s huge, especially in the financial markets. They’ve made big bets on it. They’ve built a lot of their trading apps and a lot of their internal apps on it. We’ve been telling Microsoft this for years,” he says.

The problem I guess is that while WPF/Silverlight makes sense for data visualisation for internal apps where you control the platform, for broad reach apps that are visible to the rest of us, Adobe Flash or some other approach is a better fit.

It is understandable that companies like Infragistics are keen to talk up the Microsoft platform. Their business depends on it. It is true that Infragistics is now experimenting with other platforms like Apple iOS and Google Android, but historically developers on non-Microsoft platforms have not formed a strong component market.

“They don’t get it as much as Microsoft developers,” says Guida. “We used to have a ton of Java components. I was at the second JavaOne conference. We built some of the first AWT components, JavaBeans, Swing components. There’s a lot more pain developing for these platforms than on the Microsoft platform, Microsoft has done a great job with the tooling. Why have that pain? I think there is a distinction between the Microsoft and the non-Microsoft developer, that they have a higher tolerance for, pain’s probably not the right word, but a higher tolerance for taking longer to get stuff done. I can only believe that over time maturity will happen. It’s really about satisfying a business need or a consumer need. These platforms are different, but if we go in and give them the tools, why not? We’re really just this year starting to get there.”

It is a brave hope; but looking at the Infragistics site, there are currently no Java controls on offer, and even the 2008 NetAdvantage for JavaServer Faces (JSF) seems to have disappeared. If the Microsoft client platform does decline, the future will be challenging.

.net, microsoft, professional, visual studio

What’s coming in Microsoft Visual Studio

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Microsoft is beginning to talk in detail about the next version of Visual Studio, though currently mostly in the area of ALM (Application Lifecycle Management) tools.

Continuous testing and support for diverse test frameworks

The new Visual Studio will support unit tests that run in the background. Visual Studio VP Jason Zander adds that:

With Visual Studio vNext we are enabling you to use your favorite unit testing framework integrated deeply into the IDE. We will support MS Test, xunit, and nunit with vNext. You will also be able to target both .NET and native C++ code. Adding test frameworks is an extensibility point as well so if you don’t see your favorite one listed here, you can easily add it.

Storyboarding in PowerPoint
This is not exactly a Visual Studio feature; but the new version will include a PowerPoint plug-in and templates that lets you mock up a user interface. Why bother, when Microsoft already has Sketchflow in Expression Blend, and tools in Visio for laying out a GUI? Apparently many users are more comfortable in Office.

Integration with System Center

Visual Studio 2010 already includes a virtual lab management feature that lets you test applications on virtual machines managed by System Center Virtual Machine Manager. But what about deployed applications? A new connector for System Center Operations Manager brings similar integration, so that bugs can be reported directly to Team Foundation Server complete with stack trace enabled by IntelliTrace, a historical debugging feature.

Context switching

The thinking here is that when developers are interrupted they lose the flow of their work. Context switching lets you shelve code changes, open windows and other activity tied to the current task. You can then do other work; when you later resume the task Visual Studio recovers its state.

New Team Explorer

Team Explorer is the connector and window in Visual Studio that forms the client for Team Foundation Server. This has been revamped for the new version, and now uses “full asynchronous communication” to improve load time and responsiveness. There are new views for common categories of information, including work items, pending changes, builds, reports and bugs.

New Agile collaboration tools

There are new tools in the Web Access client for Team Foundation Server for feedback and collaboration on projects using Agile methodology. Backlogs shows features to be implemented in a sprint, a unit of project iteration. The Task Board shows the backlog in a new visual view.

Connector for Project Server

A new connector for Project Server enables project-style views of project progress, such as Gantt charts.

Feedback tools

A new feedback mechanism aimed at stakeholders lets users enter feedback into Team Foundation Server. Tools include a web recorder that lets users comment on actions in a web application with linked recordings.

Code Clone Detection

This is a code quality feature that analyses a project looking for common code that should be refactored into a shared block.

Code Review

Code Review lets team members comment on code, similar in some ways to a commented document in Word.

Hosted Team Foundation Server on Azure

“Any team up and running within 30 seconds” is Microsoft’s claim for a new hosted option for Team Foundation Server. An exaggeration no doubt; but since a full-featured TFS takes some effort and infrastructure to implement, the hosted option will be welcome.

Visual Studio tends to be synchronized to some extent with new versions of Windows, so I would guess we will learn more about Visual Studio vNext at the Professional Developers Conference (though it may be called something else) in Anaheim on September 13-16 this year.

You can read more about Visual Studio vNext on Jason Zander’s blog and in a white paper [pdf]. 

.net, microsoft, mono, open source, professional, silverlight, software development

Mono splits from Novell/Attachmate to form basis of new company

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Mono is an open source implementation of .NET, formerly sponsored by Novell, and its future following Novell’s acquisition by Attachmate has been the subject of speculation.

Today Mono leader Miguel de Icaza has revealed new plans. In a blog post, he announces Xamarin, a new company focused on Mono. This company will build new commercial .NET tools for Apple iOS and Google Android, to enable .NET development on those platforms. Note that they will not be called MonoTouch and MonoDroid, the Novell offerings for this, but will be “source compatible”. I am sure there are brand and intellectual property ownership issues here; but de Icaza is no stranger to negotiating tricky issues of this kind, bearing in mind Mono’s relationship with Microsoft .NET. However I am not sure why the new company cannot acquire the existing brands, since it seems that Attachmate will no longer be able to support them.

The plans are not exactly new, but have been forced by Attachmate’s decision to lay off the entire Mono team:

We have been trying to spin Mono off from Novell for more than a year now. Everyone agreed that Mono would have a brighter future as an independent company, so a plan was prepared last year.

To make a long story short, the plan to spin off was not executed. Instead on Monday May 2nd, the Canadian and American teams were laid off; Europe, Brazil and Japan followed a few days later. These layoffs included all the MonoTouch and MonoDroid engineers and other key Mono developers.

Apparently Xamarin has “angel funding” but is looking for more.

The advent of MonoTouch and MonoDroid has been good for Mono, since it gives the project a stronger business model than it had previously. These mobile platforms are hot, and the ability to code for them in C# is great for Microsoft Platform developers. This factor could enable Xamarin to succeed.

On the other hand, Novell’s name gave Mono enterprise credibility as well as the backing of a large company, and these it now lacks.

The curious thing is that Mono is valuable to Microsoft. The company seems at times to hate Mono, because it removes the need for Windows, and at other times to love it, because it extends the breadth of .NET to include Linux and now iOS and Android. Microsoft gave some sort of official status to Moonlight, the Mono implementation of Silverlight, though the company’s support for Moonlight has always seemed hesitant.

So can we expect now that the company which can afford $8.5 billion for Skype, could expend a few million in support of Xamarin? Or will it stand by and hope that Mono fades away?

I have no idea, though I would like to see both Mono and Xamarin succeed. It is no threat to Microsoft, but does take .NET to places that Microsoft will never support. Without Mono, C# is merely a language for programming Windows.

cloud computing, google, internet, microsoft, professional, security, sharepoint, Web

Cloud is identity management says Kim Cameron, now ex-Microsoft

Kim Cameron, formerly chief identity architect at Microsoft, has  confirmed that he has left the company.

In an interview at the European Identity Conference in Munich he discusses the state of play in identity management, but does not explain what interests me most: why he left. He was respected across the industry and to my mind was a tremendous asset to Microsoft; his presence went a long way to undoing the damage of Hailstorm, an abandoned project from 2001 which sought to place Microsoft at the centre of digital life and failed largely because of industry mistrust. He formulated laws of identity which express good identity practice, things like minimal disclosure, justifiable parties, and user control and consent.

Identity is a complex and to most people an unexciting topic; yet it has never been more important. It is a central issue around Google’s recently announced Chromebook, for example; yet we tend to be distracted by other issues, like hardware features or software quality, and to miss the identity implications. Vendors are careful never to spell these out, so we need individuals like Cameron who get it.

“Cloud is identity management,” he says in the interview.

Cameron stands by his laws of identity, which is says are still “essentially correct”. However, events like the recent Sony data loss show how little the wider industry respects them.

So what happened at Microsoft? Although he puts a brave face on it, I am sure he must have been disappointed by the failure of Cardspace, a user interface and infrastructure for identity management that was recently abandoned. It was not successful, he says, because “it was not adopted by the large players,” but what he does not say is that Microsoft itself could have done much more to support it.

That may have been a point of tension; or maybe there were other disagreements. Cameron does not talk down his former company though. “There are a lot of people there who share the ideas that I was expressing, and my hope is that those ideas will continue to be put in practice,” he says, though the carefully chosen words leave space for the possibility that another well-represented internal group do not share them. He adds though that products like SharePoint do have his ideas about claims-based identity management baked into them.

Leaving aside Microsoft, Cameron makes what seems to me an important point about advocacy. “We’re at the beginning of a tremendously complex and deep technological change,” he says, and is worried by the fact that with vendors chasing immediate advantage there may be “no advocates for user-centric, user in control experience.”

Fortunately for us, Cameron is not bowing out altogether. “How can I stop? It is so interesting,” he says.

apple, google, mobile, professional, web authoring

Apple, Google: risks of third–party platforms for developers

This week there are a couple of stories about companies whose business was affected by the third-party platform on which they deploy.

The first is from a post from Beamitdown Software’s Dennis Morin whose iFlowReader app for iOS is no longer viable following changes Apple has made to its developer agreement, insisting that add-on content for apps must be sold through Apple’s purchase system, where it is subject to a 30% fee. Beamitdown’s product is an eBook reader, and the content is eBooks, on which the company gets a 30% commission from the publisher. No profit.

It is also worth reading Morin’s interview with CNET in which he adds some detail.

Morin’s complaint is that Apple changed the rules; and reading his account of how difficult it was to communicate with Apple and how unsatisfactory and unreasonable the outcome is, it is hard not to be sympathetic.

On the  other hand, was it sensible to build a business on a platform that you do not control, and with a product that competes, and was always likely to compete, with a similar service from the owner of that platform?

Ask Skyhook, which is trying to offer location services on Android devices, and is suing Google for allegedly blocking Skyhook’s deal with Motorola to favour of its own services. The action has unearthed  correspondence between Google and Motorola that shows the limits of Android’s openness, though I have no idea about the merits of the legal action. Note that a key point here is not the Android OS itself, but Google’s applications which include Android Market. You will notice that the cheapest Android devices, like the famously poor Next Tablet, do not include the Android Market or other Google applications; they use Android source code but are not fully part of the ecosystem:

Is compatibility mandatory?

No. The Android Compatibility Program is optional. Since the Android source code is open, anyone can use it to build any kind of device. However, if a manufacturer wishes to use the Android name with their product, or wants access to Android Market, they must first demonstrate that the device is compatible.

How can I get access to the Google apps for Android, such as Maps?

The Google apps for Android, such as YouTube, Google Maps and Navigation, Gmail, and so on are Google properties that are not part of Android, and are licensed separately. Contact android-partnerships@google.com for inquiries related to those apps.

Who determines what will be part of the compatibility definition?

Since Google is responsible for the overall direction of Android as a platform and product, Google maintains the Compatibility Definition Document for each release. We draft the CDD for a new Android version in consultation with a number of OEMs, who provide input on its contents.

The Next tablet and devices like demonstrate why Google having a measure of control over Android is not a bad thing. However it gets uncomfortable if you want to put out a device that uses Android in ways that conflict with Google’s goals.

What are Google’s goals? It is a good question; but my assumption is that Android is intended to promote Google’s services such as search, and to make your Google identity central to your digital life so that you use Google mail, payments, Google Apps and so on. Further, Android is a strategic play to prevent Apple from owning mobile outright, at least at the high end, and in that respect it is proving successful.

The newly announced Chromebook is more closely tied to Google and delivers more obvious benefit to the company, but whether it will be as successful as Android is doubtful.

The bottom line is that if you choose to deploy on someone else’s platform, you have to take account of the risk that entails. This is nothing new – try marketing an office suite for Windows – but the extent to which the platform is controlled has been taken to a new level by Apple, and even Android has its risks. The nearest thing to an open platform that has broad reach is the Web and web technologies.

adobe, cloud computing, google, mobile, professional

Chromebook: web applications put to the test, and by the way no Java

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Yesterday Google announced the availability of the first commercial Chromebook, a Linux computer running the Chrome browser and not much else. There are machines from Acer and Samsung which are traditional laptop/netbook clamshell designs, with an Intel Atom dual core processor, 16GB solid state storage, and a 12.1” screen. Price will be a bit less than $400, or organisations can subscribe from $28 or €21 per month in which case they get full support and hardware replacement. There are wi-fi and 3G options. Nobody is going to be excited about the hardware.

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The Chromebook may be the most secure computer available, if Google has got it right. The OS is inaccessible to the user and protected from the browser, and system patching is automatic.

The strength and weakness of the Chromebook is that is only runs web applications – the only exception being utilities that Google itself supplies. Are we ready for a computer that is little use offline? I am not sure; but this will be an interesting experiment.

The Chromebook is a compelling alternative to a traditional PC with its susceptibility to malware and dependence on locally installed applications and data. If you lose your PC, getting a new one up and running can be a considerable hassle, though large businesses have almost cracked the problem with system images and standard builds. Lose a Chromebook, and you just get another one and sign in.

You sign into Google of course, and that is a worry if you would rather not be dependent on a single corporation for your digital identity and a large chunk of your data.

The problem for the Chromebook is that Apple’s iPad and numerous Google Android tablets and netbooks offer security that is nearly as good, and local applications as well as web applications, for a not dissimilar cost. These devices are also easy to restore if they break or go missing, slightly less so than a Chromebook but not much.

The choice looks a bit like this:

  1. Chromebook: Web applications only
  2. iPad/Android: Web applications and local apps

Put like that, it is difficult to see the advantage of the Chromebook. The subscription scheme is interesting though; it is a new business computing model that brings the cloud computing principle of operating expenditure instead of capital expenditure to the desktop.

The offline issue may be the worst thing about a Chromebook. When I travel, I frequently find myself without a good internet connection. The word “offline” does not feature in either the consumer or business frequently asked questions – a question Google would rather you did not ask?

Yet there is 16GB storage on board. That is a lot. In theory, HTML 5 local storage should solve the offline problem, but few web apps, including Google’s own, make this seamless yet.

A few other observations. While there are no user-installable client apps, Google is adding some utilities.

VPN is coming:

We’ve heard from our pilot customers that VPN is an important feature for businesses and schools, and we’re working very hard to bake this into Chromebooks soon. Support for some VPN implementation is already in the product and we’ll both extend support for more VPNs and get these features to stable soon.

Remote desktop access is coming:

we are developing a free service called Chromoting that will enable Chrome notebook users to remotely access their existing PCs and Macs.

Apparently this is based on Citrix Receiver.

There is a bias towards Adobe Flash:

Chromebooks have Flash support built-in, but they do not support Java or Silverlight.

Another blow for Java on the client.

adobe, development, flash, mobile, professional, software development

Hands On with Adobe Flash Builder 4.5 for Android

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I have been trying several cross-platform development tools for mobile, and today I set out to create an Adobe AIR app for Android using the new Flash Builder 4.5, available separately or as part of the Creative Suite CS5.5.

I made another calculator app, which may seem boring but gives me a chance to compare like with like.

You get started by running up Flash Builder and creating a new Flex Mobile Project.

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The disappointment here is that only Android is supported, so it is not all that cross-platform. According to Adobe’s Andrew Shorten:

An update to Flash Builder, scheduled for June 2011, will provide additional options to package Flex applications for Apple iOS and will include built-in support for packaging both Flex and ActionScript applications for BlackBerry Tablet OS.

so we have not got long to wait.

Flash Builder is based on Eclipse. The IDE is slow at times, for example when switching to visual design mode, but the platform is familiar to many developers and it feels reassuringly enterprise-ready. I find it a productive environment.

I laid out a screen with buttons and a label to display the output. The alignment tools work well although I made them a little too small as you will see shortly. Then I started writing code. The language of Flash Builder is ActionScript, which is based on JavaScript.

Here I met my first little annoyance. You can easily create a click handler for a button by right-clicking in the designer and choosing Generate Click Handler, or by clicking Generate Event Handler in the properties window. However, I thought it would be smart for most of my buttons to share the same event handler. All I need to do is to read the label of the button which was clicked, and pass it to my addnum routine that processes the input:

protected function btn_clickHandler(event:MouseEvent):void
{
    var theButton:Button = Button(event.currentTarget);
    addnum(theButton.label);
}

This works fine, but the IDE does not let you select an existing event handler for a button. You can paste it in, or add in in the source code editor, which is what I ended up doing. The source code editor is rather good, with excellent code completion, hover-over help for keywords, and so on.

image

The second annoyance was with the label. I wanted to add a border. I selected the label but could not see a border property. I went to the full list of properties and found exotic things like dominantBaseline in the style list but still no border.

Then I found this in the reference for a label:

Borders are not supported. If you need a border, or a more complicated background, use a separate graphic element, such as a Rect, behind the Label.

I wondered if a panel would work, and started to type it in the editor:

image

Well, it looks as if Panel is overkill for simply getting a border, but it was interesting to see the editor report that “Adobe discourages using Panel when targeting profiles: mobileDevice”. I decided to do without a border for the moment.

I finished the coding and successfully ran the project in the Android simulator. Next, I attached a device and created a new Run Configuration for a device attached via USB. I plugged in my HTC Desire running Android 2.2. Provided USB debugging is enabled on the device, this works well. Not only could I run on the device; I could also set a breakpoint and debug on the device. Everything was a bit slow in debug mode but it worked.

image

Finally, I built a release version using Export Release Build on the Project menu. You have to sign the package, but there is a wizard to create a certificate for testing.

Here it is on the device – as I mentioned, the size of the buttons needs a little work:

image

So how is performance, bearing in mind that the app is trivial. Well, the good news is that performance is OK, though launch is a little slow, except for one thing that I have not figured out. Sometimes I touch a button, and see the graphic effect as the button depresses, but the input does not register. It seems most prone to this just after launching, and usually a second tap works fine.

The vsize reported for the app process by the Dalvik Debug Monitor is around 200K, similar to that for the PhoneGap version.

Overall I am impressed, though I would like to understand the button issue, and I am beginning to wonder if my year-old HTC Desire is a bit under-powered for AIR. Device performance is improving rapidly, and Flash optimization is part of the design process for mobile graphics chips, so my guess is that AIR will be more than viable as a cross-platform toolkit for mobile. You also get the benefit of all those lovely Adobe design tools.