
A recent news article provides plenty of information about the current situation and is well worth a look.
You can read the background in earlier articles here on AAJ (scroll down after clicking the link).
Well done to Shai Agassi and his team. Lateral thinking of this kind is what the world needs right now if we are to make any impact on fossil fuel use.
Another example of the same sort (albeit much smaller) is the story of Dale Vince and Ecotricity. Articles in The Sunday Times and BMI Voyager cover that story well.