I kinda think this is more of a gimmick than a helpful feature. Video games have features like Kinect or Play Station Move, yet people continue to use traditional controllers the majority of the time. If it works right it should be easy to use, but that's a big if. I think these computers will be limited to concepts, prototypes and science fiction films. Despite all the
Augmented Reality, Touchscreen and Motion Control, I still prefer my keyboard and mouse.
It looks cool though...
My comment on James' blog!