I am VERY interested in battery life. So far it can get trough about 2 hours of gaming in multiplayer via bluetooth(well, my iPhone has about 50% after the same time). I was wondering if 4.1 is faster/better than 3.1.2. I highly doubt it, but hey, it's possible. UPDATE: OK, so I decided to go for it. I'll post the results tomorrow evening. I'm curious about the battery life, now it's not even jailbroken.