Zimride's local ride-sharing service, Lyft, has gotten a lot of positive press since launching as an alternative to cabs and Ubers in San Francisco. But it's always had some legal, regulatory, and safety questions hanging over it in the two or three months since it launched in private beta. Now that's the service is available to all, Lyft taken one big step toward answering the question of what happens if someone gets into an accident while a Lyft passenger is in the car, by securing supplemental insurance for all its drivers. Lyft says it will now provide drivers with excess liability insurance of $1 million for any incident that occurs while a passenger is in the car.