I have an iPod touch 8GB MB model. It is already jbed with Spirit and it's working fine on my version of iTunes - 9.1.1 I think. If I were to update iTunes, would I still be able to sync it? And more importantly, if I try to restore, will it get stuck in a loop? Cuz I wanna get an iPad but still have my iPod touch. When the time comes, I'll restore it and sell it.