Question 1: I wanted to play Taiko No Tatsujen for ipod, but when i try to install the ipa file, it says it's invalid. I belive this problem is caused by my region (US of A). Is there a way to make you itouch region free? Question 2: I read that blackra1n now works on 3.1.3? Is this true? And is there a way to jailbreak a 3.1.3 if blackra1n doesn't work? How to downgrade? Wait... That's more than 2 questions. Oh well.