ok so this game bubblebash is a super long game and I am halfway through it.. Then when I tried opening it up it said bubblebash.app can't open! So I restarted my iPod cus it's not unusual but this time the problem wasn't fixed tried 2 more times.. Same.. so now I have to reinstall it but I don't want to lose any game data.. Is it possible to backup not only the app itself but the saved game data? Please help!!