Mgestyk's system-wide camera control system looks fun, but FluidTunes, a simple program that lets your toss around your iTunes library via your iSight, has two important things that it doesn't: free-ness and out-now-ness.

Available now as a free universal binary, FluidTunes is a simple creature; despite what looks to be a solid gesture recognition engine, it can only control iTunes, and only in a specific Coverflow mode. Still, if all you want to do is indulge your moderately lame futuristic interface fantasy for a few minutes, well, FluidTunes can probably grant you that. [Cult of Mac]