Does the Model S come with a J1772 adapter? Does the one on their website connect directly to the car or does it attach to the cable? If it attaches to the car does it lock to it so it can not be stolen?
The Model S comes with the same adapter as shown in the accessories shop (http://shop.teslamotors.com/collections/model-s/products/sae-j1772). I've not seen it in action, so I don't know if it locks into the car the same way as the native connector. It does look like it has the usual latch on the J1772 end, so you should be able to padlock the J1772 and it won't let go of the Model S adapter. ok, so it sounds like the adapter locks to the car, and the J1772 should be able to be padlocked to the adapter, so the whole thing could theoretically be secured.
Yes, comes with a J1772 adapter. The adapter sits between the end of the public charger and the port on the S. The adapter locks to the S but the public charger plug can be removed from the adapter.
One comes with the car. It gets locked in though pressing the release button on the J1772 plug usually allows it to be pulled at the same time as the plug. It's of no value to anyone but another Model S owner so unlikely to be stolen.
Does anyone know if there is a "reverse" J1772 adapter for the HPWC, i.e., allowing the HPWC to be used with a Leaf or other J1772 compliant vehicles?
You can cut off the Tesla connector and put a J1772 in its place. Plug it directly into a Leaf or RAV4 EV or use the J1772 adapter to charge Model S. Tony Williams will do it for you for $200. See this thread at the RAV4EV forum.