Now please read this THOROUGHLY BEFORE making comments. I find on here too often people not reading FULL details before they answer. I'm currently using an "unlocked" iPhone 3Gs with AT&T's GoPhone prepaid service. I was told by AT&T it was "unlocked" so I was free to choose my carrier & I chose them. Now my iPhone 3Gs is cracked, broken, & not functioning 100%. Instead of opting to pay to have it fixed, I would prefer to see about buying a used iPhone 4. I know a friend who has 1. Not exactly sure if it's "unlocked" but I feel I could handle doing that. So my question if anybody has ever worked for AT&T or knows about them. If I get this iPhone 4 "unlocked" could I pop my current sim card in & get this activated under my current pre-paid account? The lady selling the phone called & asked & they told her as long as I have the sim card YES. I just want to get more than 1 view on this before I drop the cash on this phone & am left with a phone that would basically end up being more like an iPod touch if it wouldn't connect with my plan. I think I covered my bases. So please read & understand before commenting. Thanks!
Added (1). Yes the iPhone 4 I'm looking into buying is for AT&T already. That is what sparked my interest into buying it to begin with. And I have no problem getting another sim card. That's easy. And this iPhone is also already unlocked so it appears I should have no issues. I just wasn't sure about all phones that are eligiable to use for pre-paid plans. I thought maybe I just got lucky with the iPhone 3.