For fun, I watch the XNA community, although I haven't participated as much as I wish because of time constraints (of course).
An XNA 3.0 CTP has just been released, which targets both Windows and -- yay! -- the Zune.
http://www.microsoft.com/downloads/details.aspx?FamilyId=DF4AF56A-58A7-474C-BFD0-7CF8ED3036A3&displaylang=en
I want to get me a Zune. Now they just need to tie Zune with Windows Mobile for Smart Phones so I can carry only one brick around with me instead of two...