A big theme from The Big Three this year seems to be getting people up and off the couch.

While the Wii pioneered this kind of tech, Nintendo now appears to be in last place tech-wise compared with Sony and Microsoft, even if they're first place in sales.

Sony’s new controller promises sub-millimetre accuracy, and their live tech demo at E3 this morning was very impressive.

Microsoft have debuted their Project Natal, which is a more ambitious (read: probably won’t come to fruition) scheme, involving skeletal mapping via a camera system. Without controllers at all, you become part of the game. If they can pull it off, the other firms should be worried.

Nintendo, on the other hand, have zillions of Wii units out there. They have a massive and growing base of users with Wii Fit and the balance board, as well as widespread use of the Wii-mote motion sensors. Even with the new precision addon, the Wii already seems archaic compared to the other offerings, at least in terms of user involvement and real motion.

Dominance over the others is impossible to tell at the moment, with Sony and Microsoft products still a way off the market, while Wii continues to burrow into the homes of the world. All I can say right now is whole body (or at least arms/legs) gaming is here, and will only become more of a force in the industry as the tech matures.