Heh, that Proun looks completely wacky.
Might be worth a look. They're doing one of those 'pay what you want' deals as well.
Pay What You Want means that you can choose yourself how much you want to pay for Proun. Really like it? Pay me for it! Just want to give it a quick try? Then don't pay and just download for free! Feel guilty afterwards because the game turns out to be more awesome than what you paid for? Buy it again! ;)