Based upon a logical ordering system, there should be a script that would search for duplicate orders and detect an error. Apparently according to you guys AT&T doesn't do this, and I for one don't know for sure either. However with the mess that we saw on pre-order day nothing would surprise me if you did indeed get both phones.
Though you should keep one thing in mind from an ethical standpoint. If you ordered multiple phones, intentionally or not, you therefore have just taken some other persons phone and YOU are the reason that they won't get their phone on launch day. With so many people claiming that they ordered multiple phones, and they will try to sell the other on eBay is absurd. Be logical, and be ethical and try to cancel the second or third phone you ordered from your same line. I think it would be nice just to give everybody the chance to enjoy the iPhone 4 on launch day like many of you will. Just my 2 cents though. AND before some of you bite my head off, I know that some of you did this unintentionally and you have tried to cancel your order, I commend that. I am speaking for those that have not tried to cancel and did so intentionally.
Fair enough and well argued.
But what about this counter....
many of us with two orders are in that position because we got up way early, and had to try ordering literally for hours and did not know we had multiple orders until a day or so later. With that being said, isn't it sort of true we deserve a meager profit off the second phone for our trouble that day.