I stopped at the Barstow Supercharger station yesterday on my way to Las Vegas. Construction workers are hard at work doubling the number of charging bays to a total of 4. In talking with the foreman, work should be complete by Friday April 12. He was not sure when PG &E would get around to turning the power on.
I suspect this is part of the upcoming Supercharger announcement Elon mentioned in his interview.
This was my first Supercharger experience , amazing technology, I got a 180 mile charge in about 40 minutes. Once this network is built out there will be not limits on where you can take a Model S without and range anxiety.