It's hard not to love the crazy stuff happening at Microsoft Research, but it's also hard to imagine when any of it is going to actually start changing the way we interact with our PCs. Surface was bested by SecondLight as the coolest tech we can't buy, and now here comes another successor: LightSpace. This gets rid of the expensive table in favor of a (surely not cheap) series of projectors hanging from the ceiling paired to a 3D camera