I cant get my tiny little mind around it.
It couldn't be just any projector as it would have to adjust to tv screen size so your not projecting the image on to varying size TV's, any slight change in tv position or having the projector not aligned properly would just cause a double picture.
Its an amazing idea but would it be something developers would have to code for? If so it just makes it like the original Kinect with only a handful of games possibly taking advantage.
Personally I would love to have it - although it would mean completely re-arranging my front room with possibly a bit of rewiring and maybe some plumbing.
Would actually prefer some of these at work though over illumiroom at home.
Microsoft Research shows off see-through 3D display, Holoreflector, IllumiShare | ExtremeTech
MS research rocks.