What's the big deal with this game? I also heard about this game at college. Seems like a lot of people are talking about this game. Is it just another typical IQ game, where you have to simply pick a square out of rectangles? would it work on iPod? I only got an ipod touch. Also I just read through the thread and can't understand at all.. well confusing as you guys seem to be saying it's easy but hard... obvious but can't see it.. what the...