The rumor was true: Waymo's self-driving car service is here. The company has launched Waymo One, its first commercial ride hailing offering. People in part of the metro Phoenix area can use an app to ask for an autonomous vehicle 24/7 much like they would ridesharing cars, complete with price estimates and trip reviews. Up to three adults and a child can travel at once. To no one's surprise, though, Waymo is starting cautiously -- it's hoping to avoid further collisions and ease the community into a driverless world. The service will initially be limited to "early riders" who've already been a part of Waymo's test programs.