It looks like Waymo is about to expand its self-driving taxi service

Waymo One — the self-driving taxi service from Google's autonomous car company — officially launched in December, but it hasn't been available to many people. That could change.

In a blog post Tuesday, the company announced a new 85,000-square-foot technical service center in Mesa, Arizona, just outside of Phoenix. The taxi service — available through an app that orders Waymo-ified Chrysler Pacifica minivans — has only been available for about 400 "early riders" in the Phoenix area, but Waymo says it will open up to more people. It's just not clear when that will happen.