Guys, let's make this clear.
ANYONE CAN RESERVE AN iPHONE FOR IN STORE PICK UP RIGHT NOW.
This works on the website AND the new Apple Store App.
You will have to wait in line, it does not charge you any money, there is NO GUARANTEE that you will actually get one and then you will STILL have to deal with AT&T's server woes - just on a different day.
It works fine because it doesn't even check your AT&T account info.
PRE-ORDERING DOES NOT WORK
It will not work on the website, and the Apple Store App gives you an error message and asks you if you want to reserve.
Pre-ordering checks AT&Ts servers, which are failing.
But when it succeeds - you actually PURCHASE the phone and it is YOURS.
(Although shipping MIGHT be delayed)
One is increasing your chances of buying one at your local Apple Store on launch day, the other is ACTUALLY BUYING the phone.
Reserving one does not mean you bought one. It does not even mean you will get one for sure.
Again
RESERVING and PREORDERING are NOT the same thing