I believe vfx is correct... that's very likely the orange-cabled adapter I saw in the Tesla charging area in the parking garage:
What a crappy solution, sorry for saying it this way! Again some extension cable which can be laying on the ground in the mud and water where people can stand on. They should be able to make something like a "soda can" which does the job much better.
I'm not sure this is a 'prototype' of anything. More likely a Heath Robinson temporary solution for some engineers,
HPC-to-Model S Adapter Maybe old news Was sitting on the chargers at Santana Row. Not sure if final production would look like this or if this is a 1-off.
Merged this with another thread, but I'm sure it shows up elsewhere as well. The Roadster end is looks out of the Roadster parts bin and is likely the same part that's behind the Roadster charge port door. The sticker in the earlier photos says "Adapter TSL01 to TSL02".
I can't find it at the moment, but one of the Founders who has been posting on the TM forum mentioned recently that they've gotten their adaptor. I wonder if they could be persuaded to post a picture of it? http://www.teslamotors.com/forum/forums/punch-list?page=2
I was quoted $650 for the roadster to model S adapter cord. I don't think I need it since the Rabobank HPCs along 101 have been converted to J1772. But it appears that many of the ones in Oregon and Washington are still using the Tesla roadster plug. Maybe the Barstow one too. the Tesla Highway http://www.evchargermaps.com/
Call the folks at Clipper Creek, Contact Clipper Creek. They made the original Roadster HPC and have a conversion kit to convert it to a J1772 charger for a similar price. To keep charging your Roadster at 70A, you will also have to buy a Roadster J1772 cord. The total will be more, but you will have a J1772 cord for your Roadster for all those 30A, Public, J1772 charging stations appearing everywhere.
Here's a pic of the J adapter for the Model S. (The black part in the pic is the adapter) http://teslamodelsxc.files.wordpress.com/2012/09/img_0025.jpg