flOw feels more like an art project than a game, initially started up as a Thesis, then moved on to being a Flash Game for PC & Mac and now THIS! flOw with just the use of SixAxis (yes, no stick control for you!)
But perhaps the most striking thing that flOw features (for this writer at least) is the visuals/graphics. I mean, look how tantalizing they are! It's almost like floating amongst electric jellyfish and you're seeing colors for the first time.
Add to that the fact that the game will run on 1080p, man, it doesn't get any psychedelic than this.