Hey guys, Im clueless to this whole ESN thing and just want to make sure im doing things right before I proceed to activate my new phone. I currently have the blk VIP4 and just purchased the white VIP4 today at full price. 1 When i activate white VIP4 in iTunes will blk VIP4 be ok to sale to another person without making the ESN bad? 2 once the phone is sold, do I need to do anything else? 3 Also, if a potential buyer requests the phone's ESN in advance, can I give to them without worrying about negative repercussions?