New to the KMP Google Earth Add-on maps is a map of Tesla charging stations.
Currently one can drive from the Canadian border to the Mexican border along the iconic West Coast free of charge. The new Supercharger charging stations (currently 12 on the West Coast with many more to come in the Fall) allow for a full 300 mile charge in only 20 minutes. By 2015 Tesla expects to have Supercharger charging stations covering the country.