Interesting thing. I ordered my mini within an hour after the keynote. Searched by reference number yesterday with my order number, minus the last two digits, and it came up scheduled for delivery on 11/7. (Apple still says PTS, of course.) I copied the tracking number associated with it so I wouldn't have to go back and do that again.
Today I track by the tracking number and it says, no scheduled date, check back later. I search by reference again and it's still 11/7.
Then a bit ago, tracking by tracking number switches to delivery by 11/12. Tracking by reference still says delivery by 11/7. I'm very unclear how the same package can have two different delivery dates associated with it. The tracking results look identical whether I track by tracking number or reference, with the exception of the delivery date.
That said, no way it takes until the 12th. It just landed in Alaska about three hours ago, and in my experience with launch-day Apple shipments, that is two days away at most, which would put it here on Wednesday.