If I jailbreak my iTouch 2G (soon...), then 1. Re. my already paid-for apps -can I still get them and still update? 2. Can I purchase tunes & apps as before? 3. Do I lose all my data on existing apps? (the apps that don't allow off-device backup) t.i.a. for any replies, I'm kinda snow-blinded here (iTouch Noob), much appreciated.