Companies try to shoot down class action lawsuits all the time - these cases are typically costlier, and harder to settle out of court. However, Uber has more motivation than most to avoid facing an entire group of complaints. If the class action lawsuit prevails, Uber might be compelled to treat all its Californian drivers as employees, with the benefits and compensation that this entails. The firm's very business model is built on minimizing the cost of recruiting drivers -- it's going to deal with a lot more overhead if it has to pay for fuel, health care and other expenses.
This article by Jon Fingas originally ran on Engadget, the definitive guide to this connected life.