I ordered the SS, Classic Leather Band at 12:12 PST on Apr 10. No charge to my card yet. Still "processing" my order. Expected delivery: 4/24-5/8.
I ordered an extra cable at 12:28 PST. Credit card was charged today, 4/20. Status is now "Preparing for Shipment" for delivery 4/23 - 4/28.
I ordered a black Sportband at 12:28 PST. No charge to credit card yet. Still "processing" for deliver 4/29 - 5/12.
I can't imagine how many times the Apple Online store was pinged this afternoon once charges started posting to customers' credit cards. As the world changes to give customers instant notification of payments, shipping status, etc. on our wrists and across multiple devices, I expect requests for status updates will flood Apple's servers in larger and faster waves.