Okay, I jailbroke my old iPod Touch 2G (MB series) last night in preparation for the imminent i4 jailbreak just to get some practice in with the procedure, offerings, etc. Now that I've got my feet wet, I'm really eager to try with my i4. Now I am running 4.1 and I know this updates the baseband and all, but I'm aware that 4.0.1 could be jailbroken, so my question is this: Can I restore to factory settings, jailbreak, and re-upgrade? Or even just restore and jailbreak? Thanks.