I jailbroke my daughters iPod touch 3g with Blackra1n when I first got it. However, the jailbreak required it to be tethered and do what was referred to as a "mini jailbreak" if the ipod was ever fully shutdown. Now that spirit is out, apparently that fixes that one issue, however it says its NOT for phones already jailbroken. The iPod contains many apps without DRM. The idea is to be able to rejailbreak the iPod without loosing any information. Can it be done, and how?