Been watching this thread since last Friday. First time preordered and wasted some time so didn't get order in until 5:25am. Delivery was set for Nov 3-6.
Anyways, found this website that gives quick updates on stock inventory for local Apple Stores. Missed an available iPhone available in a local store a few hours ago, but another popped up and was able to grab a 256 PB 12 Pro in time. Set to pick up on 10/25 and cancelled my 11/3 order. Recommend folks with later delivery dates to use it and maybe you can get lucky as well!