Waymo, the frontrunner in the self-driving car industry, today announces the moment everyone has been waiting for: It is officially “launching” a robo-taxi service in Chandler, Arizona, wherein riders will use an app to hail the vehicles to take them anywhere in an 80 to 100 square mile area, for a price. “Today, we're taking the next step in our journey with the introduction of our commercial self-driving service, Waymo One,” Waymo CEO John Krafcik wrote in a blog post.