Needing only a mouse to make broad movements, the OCZ Neural Impulse Actuator (NIA) was demonstarted at this years CeBIT to be able to control a player in Unreal Tournament without a keyboard or any other input. Reviewers were allowed to test the machine out at CeBIT, but sadly all the videos I have are not in English.

This thing could be even more impressive than the Wii controller if it really works. And it could be phenomenal if this were used in conjunction with the Wii controller. I really want to try this out. The brochure states that it should be out with a year, and that it will initially run around $300.

OCZ Neural Impulse Actuator PDF brochure

And here are some videos of it in action at CeBIT 2007.