We all know the Wii is motion sensitive and controlled, and it seems to be the future of gaming.
But at this years E3 (if you don't know what E3 is, it's the Electronic Entertainment Expo held every year for computer game developers and the like to show their current projects, and what they have in the pipeline to come) Microsoft announced their Project Natal.
Project Natal is best described by viewing the trailer they released.
Which is here
Also reading this guys review who tried it for himself.
I, as an xbox 360 owner, am very excited about this and can wait for it to hit the shelves (depending on price of course)