Ubisoft's announced a private beta for the 360 version of Tom Clancy's EndWar, the voice-controlled World War III strategy game. You need to have a Gold Live account to get in on the action. Taken from the official site:
The Private Beta will take place for 3 weeks in June and July, and will be available in English only. The Beta will feature 3 maps and be playable exclusively online in 1v1 and 2v2 matches. The Beta will be available for Xbox 360, and you will need to be an Xbox Live Gold Member, with a broadband internet connection, and 3 GB of free space on your Xbox 360 Hard Drive.
The version will be in a Test state and you will likely encounter some bugs and crashes. Your contribution will be very important and will help us to produce a better and more polished final product. Your participation in this Beta will be strictly confidential, and you will not be allowed to share your experiences playing EndWar anywhere outside of this website.