Now the real challenge would be to make it work from six feet under. ;)

I'm joking, but I wonder if I'm the only one who made that connection. Otherwise a different tag line might work better.

Apart from that I agree with the other posts regarding the business idea and choice of wardrobe in the demo.

I really like the idea of using your phone as a remote, I think this kind of I/O is generally underutilized. Personally I would explore that space some more, even though it's not as flashy as the gesture recognition.