Just wanted to drop a posting about this. My girlfriend's iPhone was jailbroken and crashed. I managed to get it up and running, but then it wasn't picking up a signal or network for that matter. I ended up having to restore...so they snuck that one in on me. She lost everything related to the jailbreak, but the phone now has a signal. As of now, it has not had any issues with the conversion back. If it does, I will post and let you all know.
Hurry up with figuring out the new version though! She won't rest until she has Tinkerbell back on her phone! LOL