With help from signals from roadside markers and traffic lights, in-car computers will be able to determine if a car should slam on the brakes, alert the driver to a passing vehicle in the blind spot or slow for a red light up ahead that another driver isn't heeding.

FORBES: Car Talk

The Kindle's light however, is hard to spot, thanks in part to a much thinner bezel: you can't just angle the reader and see the lights here.

ENGADGET: Amazon Kindle Paperwhite hands-on (Update: video)