Apple iPhone Duo sells out instantly. Its backordered until December.

Pre-orders for the iPhone Duo opened at 8 a.m. ET on Friday, and moments later, the phone was already sold out.On social media, customers complained that they were unable to secure the phone for in-store pickup, and on the Apple online store, the phone is now backordered for delivery until early December.Credit: Timothy Werth / Mashable
Apple's "Get Ready" program allows users to pre-preorder new iPhones so they can check out more quickly on opening day, but even this was too slow for most custo