So I was driving back from a hike up along Skyline above Portola Valley, and stopped off at the parking lot across from Alice's in Sky Londa to change from boots to something more comfortable. And there was the glittering object of both techie and green lust, one of the prototype Tesla electric roadsters, apparently about to go for a test drive along the twisty roads west of Skyline. 
It wasn't clear if it was a real test or a reviewer's excursion, but I wasn't the only one pulling out a camera.
The trailer in back of the car carried the Tesla Motors logo - not clear if it had brought the roadster up the hill, was a mobile shop 'just in case', or carried a big ass battery charger 'just in case'. Let's hope a few more years on the battery learning curve makes this experience a more common one.