Targeting the Xbox 360 console is not supported in this beta release. It will be supported in the final release version.
The new features in this release are too numerous to list here. However key items include: Support for the Visual Studio 2008 family of products, developing games that run on the Microsoft Zune digital media player, enhancements to the XNA Framework API for media support, sound effects, rich presence and much more!
This release provides compatibility with the Zune 3.0 Firmware release. Please note that the XNA Game Studio 3.0 CTP will no longer work once you have upgraded your Zune device to the 3.0 firmware.
For additional setup information and known issues, please read the XNA Game Studio 3.0 Beta ReadMe page using the link below.