Could not access the webstore or Apple Store App until at least after 14mins from when the preorders went live.
Managed to get the iPhone Plus Jet Black 256GB but was showing 30 September for delivery when i added it and by time i pressed checkout it changed in my email confirmation to 5-14 October (Australia)
Theres a few saying they managed to get that model for delivery on the 16th but its only a handful and to be honest they could be trolling?? Most got estimates either 30th September then next early to mid October and now November...Yikes!!
Also in Australia. Refreshing all avenues repeatedly and finally got through online after about 15 mins. Jet Black 256GB delivery 30/9-5/10. Interestingly just before checkout I swapped over to the Apple Store App to see if delivery would be any better and couldn't even get past the we'll be back screen. Checked out online.