This is easily my favorite iphone game, one which I cant imagine on any other platform, and one which I played to enjoy rather than waste time. At times it reminded me of Picross in that Id look forward to seeing the finished pattern, even in the less challenging levels. Some of the hard levels truly were challenging (especially #78, which took me an embarrassing amount of tries to figure out!) and I hope more levels will be added in the future. But even if not, I cant think of a better way to spend $2 in the App Store.
Batkiller about Colorbind