I currently have an Apple pre-order for delivery on October 5th. I just missed the cut off time when I order. I would really like to grab a phone on launch day if at all possible. My plan is to stand in line at an AT&T store at around 6AM and just hope that I can get a phone by 8AM. If I don't get one, I would like to keep my preorder as a backup. My question is, if I am in line at 6AM and realize that I can get the phone of my choice, could I log onto my phone and cancel my Apple preorder? Would my upgrade eligibility be reset by the time I go into the store to purchase? If anyone has any experience with this I would appreciate it.