Halo 2 may not be playable between the Xbox 360 and Vista, despite what a Microsoft press release lead us all to believe, but at least PC gamers will be getting some hot Uno PC versus 360 action on.

It looks like they also might be bringing Geometry Wars to Vista. About 45 minutes in to Microsoft's CES keynote the game pops up in the Vista gaming montage. This shouldn't come as a surprise. Microsoft recently shot down the Geometry Wars clone for the PC, GridWars, and it's a pretty easy port.

[Thanks for the tip Brian]