Apple is unveiling the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max at a special event on September 10. But that's the announcement. You may be wondering exactly when you'll be able to purchase one of the new devices. Well, wonder no more. According to a source working at a major US carrier, pre-orders for the trio are set to start on September 13. That's the Friday after the announcement, and it comes as no surprise that Apple would start taking pre-orders then - because it's been doing the same thing for years. Exactly as unsurprising is the rumored release date of the three...