That's it!
I had a standing pre-order with fulfilment date of end-October.
Have cancelled the order until Apple can figure out what the heck is going on.
Or do what I did and order a regular iPhone 15 instead. I should get mine in about two weeks.
Except if you have some very specific photography needs the base model can't cover (and there aren't a lot of things the base model can't do), it really seems the regular iPhone 15 is a better buy this year.