ZOMG TEH COPYEZ! ZOMG
...motion sensing controllers have been around for a while. Nintendo didn't come up with them (but thez pputz dem in home consolez! zomg?)
Hopefully microsoft implement motion control better than the Wii did
BTW: I'm pretty sure microsoft didn't laugh at Wii for the waggle controls. Microsoft can't laugh as it isn't a person it's a company.
What I want to see: Better accuracy for the pointer (similar to a light gun) (if there is a pointer)
             : Really strong rumble so you get strong tactile feedback when you 'interact' with something in the game.