Last night I got this great idea to use my 4g 1st gen iPhone as just an iPod in my car as my cd player has decided that it no longer wants to play burned cds. I plugged it in and iTunes updated it to 3.0 and when it restarted it asked for a sim. Do you think I should go to AT&T and just ask for a new sim to get it going and then take it out and put it in airplane mode? I dont actually want to activate the phone again. I just want to use it for its music.