Windows Phone 7's Xbox Live integration could take advantage of Kinect down the road at Steve Ballmer's MWC keynote today. How, you ask? Using the Rally Ball game, a Windows Phone user was shown tossing balls to an on-screen character that's controlled by someone else on an Xbox using a Kinect. Simple, yes -- but perhaps as interesting as the Kinect aspect is the viability of real-time cross-platform gaming that Microsoft seems to be throwing its support behind. Seems like a good way to torture your friends into working out from thousands of miles away, doesn't it?
Update: We have a video of this in action after the break!