whats the differences between iOS 5.0.1 and iOS 5.1.1 for a iphone4s? my iphone4s is untethered on 5.0.1 and im not sure if its worth the upgrade to 5.1.1 and untether jailbreak again? my battery life is horrible on 5.0.1 right now, so hopefully that was fixed. sorry if this has been asked before, i used to stoke this site a lot but haven't had time to lately due to career change. thanks all.