The XNA team has announced that the Community Technical Preview of XNA GSE 3.0 is now available. The big news in this is that now it is possible to develop games for the Zune. So yes, now a handheld device that will play XNA based games. Check out the official announcement here for the details on what, where, when and how. Hey, just in time for something new for after the AP CS exam. 🙂
In related news, there is a demo of developing for the Zune on Channel 9 as well. Take a look here.
Edit: More Zune XNA links at http://blogs.msdn.com/alfredth/archive/2008/05/13/getting-started-tutorials-for-zune-game-development.aspx