Ordered an 64GB iPad Air 2 Wi-Fi model in Space Grey, the morning pre-orders went live on the East Coast (I live in the DC metro area).
Received my confirmation email at 11:12am EST (12 minutes after pre-orders went live), with an estimated delivery time frame of October 22nd and October 24th.
Checked the order status yesterday morning to see that my order had changed from "Processing" to "Preparing for Shipment."
It's been more than 24 hours now and it's still stuck in "Preparing for Shipment". Tracking by reference using my phone number through both UPS and FedEx show no results. Called Apple about half an hour ago, and they also don't have any changes reflected in their systems. Hopefully it ships out by the end of the day.
I'm in the same exact boat as you. Most of our stuff shipped from Harrisburg PA and it gets here fairly quickly. I also ordered a smart cover and it came on Monday. Fingers crossed we see our new iPad's tomorrow or Thursday.