Finally going to add to this convo. I have been a MR lurker for several years and just joined up to post today.
We are new T mobile customers with this preorder, switching from AT&T. Placed our order at 2:06 Central time. We ordered 1 Black 32 GB iPhone 7 and 1 Black 32 GB 7+. Shipping estimate is 9/19-9/26. As of this morning, my order status has changed to "being processed" when it was "order placed" since last week. I don't really know if it means anything at all, but it is a change, nevertheless. I have UPS MY Choice and there is no tracking info or CC charge just yet.
I am in the camp that has no issues with waiting until next week for the phones to arrive. I am just providing the only information/movement I can to help out. I hope we all get our new phones ASAP! Cheers!