I tried to order from Apple as well, and by the time I got in and everything finally worked it had a delivery date in early October. Was really bummed for a few seconds until I tried through Verizon and got a launch day 15PM.
Super bummed Apple fell down this morning, because I would have much rather ordered through Apple for the "instant" trade in credit vs all credits being on the bill. But, happy it went through, and a bonus is I'll be able to bring my trade in to the local store instead of having to ship it.