Microsoft is throwing a House Party on Xbox LIVE in February and they're bringing quite a few new games to the Xbox 360 and Windows Phone 7 including the PC classic Torchlight in an HD remake of Beyond Good and Evil in addition to Hard Corps Uprising.
The announcement of the House Party promotion came as soon as the Microsoft CES keynote with promises to kick it on February 16. Hard Corps Rising may be the first game but no schedule was handed as to if check here your rest are going to be released. Presumably it will probably be one or two games every week over a month-long period you need to include some other kind of incentive to buy all of the games like previous promotions.
These are definitely the games as outlined by a Microsoft blog post.
Xbox Live Arcade:
Windows Phone 7: