This was just reviewed at Macworld. I downloaded the demo and ended up buying the thing twenty minutes later (had two run throughs first ). I don't have a PSP, but have wanted one for Lumines since it came out. Well, I think I can bypass it now 'cuz this is GREAT! And $10 is the right price for it too. Anyone else try it out? Here's a link to their webpage (with demo). Insanely fun.