Apple will introduce new versions of iOS and OS X at its annual developer's conference.
Apple Online Store's iPhone 5s Shipping Estimates Slip to 7-10 Days, Gold Models to Ship in October
Some 28 minutes after they went on sale, all gold iPhone 5s models saw their shipping estimates slip to October.
Customers may still be able to purchase launch-day iPhone 5s units by heading to Apple Retail, carrier and select third-party reseller outlets -- but there is no indication how long those stores will have the iPhone 5s in stock.
Apple is opening its retail stores at 8 a.m. local time for the launch, while opening times for carrier and third-party reseller locations may vary. A list of some retailers known to be selling the iPhone 5s is visible on our iPhone 5s launch article.
Last year it took an hour for pre-orders of the iPhone 5 to sell out, while the year before it took some 22 hours to sell out of the pre-order launch-day stock of the iPhone 4S.