One thing I forgot to mention from PDC 2008: the new .NET logo:

Note the visual link to the Silverlight logo; the ribbon (I may be reading too much into this); and the soft brushwork that is meant to evoke “designer” as well as “developer”.

The .NET part has changed from lower case to upper case. This was the old logo:

Since as far as I’m aware Microsoft has always preferred .NET to .net or .Net (except in the logo) I guess this makes sense. Must remember to type it that way.