not very likely, its fanboys dreaming, but it would be cool. I mean instead of having a strategy game on a generic terrain you can have a small soldiers battle across the floor.
These french chaps seem to have sold this technology to a long list of manufacturers of cars, etc. I dunno how practical it would be outside of a pre-defined environment (not pre-moddelled, but variations in lighting, postitioning of the webcams, etc. would be a nightmare.)
I was very impressed by that demo and that's two years old.