XNA Game Studio 2.0 Beta Released
There's now a beta available of the next release of XNA Game Studio:
XNA Game Studio 2.0 (Beta)
The Beta release of XNA Game Studio 2.0 is now available for you to download! Simply select whether you’re new to XNA Game Studio or an existing XNA Game Studio Express user, and follow the instructions to download the Beta and get started.
Be aware that the XNA Game Studio 2.0 beta only works with Visual Studio 2005. There's lots of good demo and sample content on the download page as well.