I just thought I'd mention that it's out in Canada now through the Canadian iTunes App Store
for iPhone/iPod Touch and iPad through a universal app. So, any Canadians out there with an iOS device: have at it! It's well worth the asking price of $0.
I've been playing it for a few days now, and I really love it. It's full of the trademark Double Fine charm and humor. It does get tedious after a while, so it's definitely one of those pick-up and play kind of games (no marathon sessions, at least for me). But, it is really fun in short bursts. It's the first free-to-play game that I enjoyed without reservations, and it's also the first one that I don't mind putting some money in to help the cause (the money maker machine that gave you a coin for every coin you earned for $2 is hard to pass up).