Bah! We've already had motion controllers, gun controllers, dance pads, golf mats, balance boards, etc... I think these controllers will just usher in Wii casual game ports to the HD systems. I am sure that these controllers can be used to enhance your typical game (just like the sixaxis has been used in some PS3 games), but I doubt most games will use them as their main controllers.
We have already had controller-less games (Eye of Judgment, Aquatopia, Eye Pet), and they haven't exactly caused a revolution in gaming.
Personally, I would have been more excited if Sony or Microsoft announced a mouse controller.