Red Five Labs has announced its implementation of the .NET Compact Framework for Symbian, the operating system used (most of the time) by Nokia.

It is currently in beta, and implements only version 1.0 of the Compact Framework, but nevertheless it is an intriguing development.

With this, Mono, Moonlight, and Microsoft’s own implementation of Silverlight 1.1 for Mac OS, .NET is getting more interesting for cross-platform development.