The .NET Compact Framework team have released Beta 1 of their SP1 for .NET Compact Framework v2.0
You can download from here:
The Beta includes:
Support for WinCE 4.2. For more information see Richard Greenberg's BLOG.
Allow GAC to be installed to Storage Card.
Allow DataGrid cell drawing to be overridden.
Enable .NET Framework SDK Debugging via MDBG.
Include Network Log Viewer.
Include .NET Compact Framework Remote Performance Monitor. For more information see Steven Pratschner's BLOG.
Support Headless WinCE 5.0 Devices. For more information see Mark Prentice's BLOG.
Add the [Serializable] attribute to better facilitate serialization extensibility and code portability.