Ok I have a 32gb 3.1.2 jailbroken iPod touch and Im hoping to use the new jailbreak when it comes out to get a untetherd JB. 1. If I used cydia does it automaticly back up my shsh blob? If so how would I use it to recover. And 2. Do I have to unjailbreak to use spirit? And do I need to use a computer with Spirit?