If you haven't heard about it yet, we just announced some great stuff for developers working with XNA. This is the technology that you can use to develop game software on Windows and the XBox. Well, take a look at http://creators.xna.com/whatsnew.aspx if you want to see how we're taking that to new platforms! Very cool stuff, I'll be downloading and playing with it myself very soon.
By the way, if you're in Minneapolis and are interested, we've got a very active User Group that can get you launched in the right direction. They're meeting tomorrow night, but you can get all the info about their group at: www.twincitiesxnausergroup.com