With support for the new Zune 3.0 Firmware, you can download the XNA Game Studio 3.0 Beta next week with the following Framework and Visual Studio Enhancements:
- Media enumeration and playback on Windows and Xbox 360 (parity with the Zune APIs that were available in the CTP)
- Simple sound effects on Windows and Xbox 360
- Rich presence, invites and join session in progress
- Content compression
- FBX importer improvements
- Support for C# 3.0 features in Xbox 360 and Zune games (this was already available for Windows in the CTP)
- Screenshots of games while they are running on a Zune
- ClickOnce deployment for Windows games
- Project upgrade wizard to automatically upgrade XNA Game Studio 2.0 games
- Multiple content projects
- Cross-platform project synchronization
You can learn more about the XNA Game Studio 3.0 Beta on the XNA Game Studio blog.