Looks good and although I don't see it being used is any games but maybe FPS (Looking round corners and such alike. :D ), although, still cool.
@Sqrl
Re: Your depth perception on the Eye thing, although true, I think the software would be able to handle it slighty, although you'd have to move alot from your seated position to really make any difference in a game but, the software seemed to take the nose a a point focus on the face. If it can recognise when the pink square (I think it was pink) gets larger or smaller, this could replicate depth perception.
And on the false tracking, thing, I'd guess you they could make it so you 'lock', once that face is there, you can make it so that if any other person enters the area, it ignores it. Although this is just a presumption.
Also, the Eye can be bought on it's own.
Hmm, pie.
