I've been looking at purchasing an unlocked iPhone from ebay since the current 1.1.2 FW has not been unlocked. On ebay however, I see some phones with 1.1.2 that the sellers have claimed to be unlocked...how is this possible if 1.1.2 has not been unlocked? Also, do you think it's worth the ~$600 for an unlocked iPhone from ebay? Thanks!