i just upgraded to 3g and am going to sell my original 16gb on ebay. i have used the erase and wipe setting to completely clean the device (which took about 2 hours). i then used pwnage to activate, jailbreak and unlock. tested it with an orange sim and all works fine. do i need to do anything else in terms of wiping my accounts from it. i connected it to my itunes after pwnage just to make sure all was ok with the iphone so i assume it will have linked it to my itunes account at some point.