The Drive.ai partnership sounds especially promising, since its written with the tone that this effort is going to start soon, maybe before the end of the year.
There are self-driving cars being tested on public streets in cities around the world: Pittsburgh, Phoenix, San Francisco, Singapore, Austin. Some of those cities even have self-driving cars testing with a limited set of pre-screened passengers.
But right now, as far as I know, there is only one city where any civilian off the street can show up and hail a self-driving vehicle. That would be Pittsburgh, where Uber has opened their fleet to public use (with safety drivers).
Drive.ai testing in the Bay Area would bring that number to two.