I believe it's on 3.1.3 and jailbroken using redsn0w. Unlocked with boot neuter 2.0

The I got the phone thru warranty and only used it for 2 weeks afterwards, then I upgraded to my 3G. Never dropped, no scratches.

Has a ding though on the volume down button so when first turning the phone on the volume will turn off. All you have to do is mute it and un mute it and turn the volume up. I got it from apple like that and didn't fool with sending it back to them.