One app is making me upgrade to 3.1.3. I'm on 3.1.2 right now, but a certain app got deleted and I tried reinstalling it, but it says I need 3.1.3. I tried doing that Cydia app that tricks the ipod into thinking it is 3.1.3, but the app doesn't work even with that trick. Should I upgrade to 3.1.3 and then jailbreak it? I guess my question is does all the best jailbreak Cydia apps work on 3.1.3?