Hello. i just bought the iphone today off of someone. here is the info: version:2.2 (5G77) modem firmware: 2.30.03 i knwo u can unlock the new iphones...but...i heard that if the version is 2.2.1 you can't... since i dont have 2.2....which programs do i use to unlock it and jailbreak it? also...someone told me that if you do not unlock the iphone even if you already have at&T, you have to pay the ridiculous data plan price. BUT, if you DO unlock it, then they wont know....i thought unlocking it meant like if i had tmobile and wanted to use the iphone...i would be able to. please help.