Just tried to pre order on Apple.com i'm an existing customer and got this message.
"iPhone eligibility check is currently unavailable due to scheduled AT&T system maintenance and we are unable to allow iPhone purchases through the Apple Online Store, Apple Retail, or Apple Phone Sales. We apologize for the inconvenience this causes.|To check iPhone eligibility, please try again in 4 hours, 35 minutes.
"
"iPhone eligibility check is currently unavailable due to scheduled AT&T system maintenance and we are unable to allow iPhone purchases through the Apple Online Store, Apple Retail, or Apple Phone Sales. We apologize for the inconvenience this causes.|To check iPhone eligibility, please try again in 4 hours, 35 minutes.
"