Additionally, some more informative tweets from Elon.
Elon Musk on Twitter
Third row: "can you add a section in the odometer to show how many miles the car has driven on autopilot"
Elon: "Ok"
Third row: "Elon, a bunch of tesla drivers outside california complain to me that some of the speed limits / map data on exit lanes etc aren’t always accurate and it’s a pain in the ass for them works well here in CA, plans to improve map data or read speed limit signs?"
Elon: "Yes, this is a high priority"
Everyday Astronaut: "Why can’t the camera
read the speed limit signs? Is it because of the patent from mobile eye? It seems like that’s not a very novel thing and wise for the future of self driving cars"
Elon: "Coming soon"