I got in around 12:06am, chose the jet black 256GB iPhone 7 Plus and got an initial estimate of September 26. By the time I finished getting through the buying process, my estimate had slipped to October 4-10. I guess they don't save your phone from the time you start the order. That seems a bit unfair since I started the process before many others who will get the phone before I do.
I did order my wife a 256GB Rose Gold iPhone 7 Plus and my daughter a 128GB Rose Gold iPhone 7. Those will arrive on September 16. After I finished all three orders, I checked on the jet black iPhone 7 Pluses. The shipping estimates were already out to November.
I have a feeling they didn't make very many black or jet black phones.