I'd love to try it out, but I've only got it on PC and it just came out fairly recently for PC (it's $40 on Steam still).
By the way, C3PX, I took your advice and started playing Half-Life again. Damn, I forgot how good this game was! I'm going to finish it this time!
By the way, have you seen any of the GMod Idiot Box videos? I think you might get a kick out of those: