Microsoft has been working on some great new technology that as you can see from the YouTube clip has the potential for easily sharing media between mobile devices.
This is not the only application for the Microsoft Surface. I have seen videos where the surface has been effectively used for things like presentations, ordering off a menu at a restaurant and Role Playing Games.
I like that developpers and other creatives are thinking about other uses for the Microsoft Surface. Check out this video for RPGs http://www.youtube.com/watch?v=n94E3IeBquY
Further Application of the Microsoft surface. This time for Texas Hold em card game. http://www.youtube.com/watch?v=BgNJv8EKuD0&feature=player_embedded