XNA GAME STUDIO 3.0 beta released.

list of the changes in new release
Zune

Compatibility with the upcoming 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.
Improved deployment stability.
Support for Zune deployment on Windows Vista x64 Systems!
You can now use the Remote Performance [...]