My iPod is an 8 GB 3rd Gen on 3.1.12 I was originally gonna hold up on upgrading coz all I get is folders and I lose .6 GB. Now I see I can enable all the other features of iOS4 with a tweak. My questions: 1. Can I backup my jailbreak so I don't have to redownload all my jailbreak stuff. 2. Is there a non-tethered jailbreak for my model yet? 3. I have an app downloaded thats not from iTunes (the app was taken down from iTunes). Will that app be stored in the iTunes backup? Thank you!