After several discussions with Tesla customer service reps over the past week, it seems that the UL certification of the Rapid Wall Charger is far from complete, and these units will not be available for shipments until perhaps December, at least.
Solar City, Tesla's recommended installer for these units in our garages, seems to think it might be a different issue, and not just a UL listing issue.
I'm curious as to how Tesla can charge those of us that are reservation holders, once the car is ready for delivery, for a $1500.00 accessory that is not available, but part of your accessory selections. It seems that Tesla is avoiding the issue at the moment, and recommending a temporary solution until the Chargers are released. If you need more than one, say for your second home, best of luck getting that any time soon, as per customer service.
Please let me know if you have any other information on this issue.