hey guys, i got my first ipod touch 2g a couple of days ago and i love it! i jailbroke it to 2.2.1, and it truly is awesome. one not so awesome thing... the battery life. if i'm on games/apps with a full charge i get about 1-1.5 hours out of my ipod, which for the price i paid isn't acceptable.. should i take it back to the store for an exchange? if so, how can i back up my whole ipod before restoring to factory settings, including my cydia apps and everything. thanks people!