Shd I Update & jailbreak from 3.1.3 to 4.1 in my itouch 3G ? Is it final jailbreak or I shd wait for better?? ==== one more question I need to restore before update isn't it? So if I'll backup in iTunes- restore - update-jailbreak, then will all my data remain in new iOS? Like if I added notes, settings of itouch, specially files I added in ichm & good reader- or I'll have to copy files again after update?? Thx.