The testing is a callback of sorts for Waymo -- the formerly Google-owned company notes that it conducted some of its first tests in San Francisco back in 2009. Circumstances have changed a lot in the past 9 years, of course. Where self-driving cars had barely gotten started the first time around, they're now advanced enough that driverless taxi services loom on the horizon. It's still likely to be a long while before a robotic ride takes you from SoMA to North Beach, but there's a good chance you won't have to wait another 9 years for that to happen.