i thought i read when the 1.01 version came out that people didn't have to restore their phone and jailbreak items stayed on the phone. well, not for me. once the service pack was downloaded, i received an error and it required me to restore the phone. downside is i had some important notes, phone numbers, and random photos i would have liked to have kept/jotted down before having to restore! unfortunately, that wasn't possible. after the restore all the ringtones i had were gone, then i had to go back and recreate favorites lists, weather cities, bookmarks, etc. talk about a PITA! i sure hope this isn't a usual task when updating the iphone's firmware in the future. there's no reason you should have to do a restore for an update. i'm guessing it was just because of jailbreak. either way, it sucked.