be deleted? There's a lot of apps I can't use because I don't have the new software and it's bothering me, but when I heard it deletes all your stuff, I never even gave the update a second thought. It seems iTunes doesn't understand that I have many other songs besides the ones I bought from their store, therefore I'm paranoid to rely on their backup service... I'm afraid of going onto my iPod after the update and seeing only the songs I bought being on there, when 198 of the 204 songs I have aren't bought. So my question is simple... Will it delete all my stuff and make me start all over or is the backup reliable?