Just to throw an extra data point out there. My phone will eventually be shipped to Kansas, the day of preorder I was on vacation and had a few drinks before going to bed to wake up at 9PM HST for Pre-Order on the 8th, received order confirmation at 10:13 HST with a 09/28. Went back to sleep and woke up at about 4AM HST and noticed I had ordered the 7+ 32GB Black instead of 7+ 128GB Black I wanted (drink part might be relevant).
I called Verizon right away and after being on hold for an hour, had the original order canceled and a correct order placed with an order confirmation at 5:40 HST (just under 9 hours into preorder) with a expected delivery date of 10/05. At this point, I am still processing with no charges; I still have hope for delivery tomorrow, but its fading fast.
Keep in mind that in the past, some of the phones apple expected to be the most popular, they already had sitting in a warehouse somewhere waiting to go and those people saw no activity until the last minute. I can't help but think that this is where a lot of the 32GBs are sitting (and hopefully my 128). This could also affect the Jet Black people too, Apple would have had to know it would be the most sought after device. Of course I can't confirm that the same will happen this year, but it has been this way in the past.