I've jailbroken many idevices before, but every 3 months or so the iPod/iPhone/iPad would require a restore or something just went wrong. I haven't jailbroken since I got my 4s and I'm really interested in trying it again since Cydia has some pretty cool tweaks for the 4s. My question is, should I do it? How stable is the new jailbreak? Also if anything were to go wrong, how could I recover my app data/text messages/contacts/apps etc again? Could I restore from back up or set up as new?