I used 2 different apple IDs. They both went thru (got the confirmation emails) but I don't know whether they will give any problems when I pick them up.
I used the same Apple ID twice. Had both in the cart, checkout indicates I can't do that. Saved one, completed checkout on the other and then reloaded the saved item and completed checkout on it with the same Apple ID.
I did try to reserve it and I wanted 2 phones so I did select family plan for two phones but I did not receive option to add 2nd phone and I got my reservation with only one phone.
to reserve phones you need an apple ID. You are only allowed 1 phone per apple ID. The easiest logical way is to just go through ATT or Applestore and have it shipped but thats not looking good right now.