I just got off the phone with Apple Support to have them add AppleCare+ to my pre-order from last night. The system never let me add it to the cart and I was already deliriously tired so I just scheduled a service call for this morning. They added it no problem to the order and mentioned that this was an issue that has been escalated to management. Just schedule an express call via the apple website and they will handle adding it for you lickity split.
Dwayne
Dwayne