I was able to pre-order yesterday morning right when it was announced, and my credit card WAS billed. Generally, they're only supposed to do that when it ships, so I'm expecting the charge to reverse tonight or tomorrow until it ships. Order status claims 1-2 weeks, which is precisely on time with the November launch estimate.
Frankly, I think the disappearing act is easily explained... it wasn't supposed to be public yet, and regardless of what the reason might be-- order testing, AT&T fussing, AT&T issues, whatever-- I just hope my order is fulfilled ASAP. I won't hesitate to cancel and go AT&T-direct... but I had no objection going through Best Buy either.
You weren't BILLED. It was pinged for verification of funds. The charge is gone, or will be shortly.