With a technology like Sony's Move, or Microsoft's Natal, combined with 3D could be interesting. One of the things I complained about is there's no parallax, that when you move your head new information isn't uncovered behind the 3D objects in the foreground. But with the head tracking of those technologies, it could very well be used to change the viewpoint slightly and present a much more realistic 3D experience.

I'm still not buying. \:D

Pioneer PDP-5020FD, Marantz SR6011
Axiom M5HP, VP160HP, QS8
Sony PS4, surround backs
-Chris