An anonymous reader quotes an article on DailyDot: Lending your car to a friend could be as easy as sending a text. That's the future Volvo is imaging with its smartphone app that enables keyless entry for the driver -- and anyone with permission to enter. Announced earlier this year and now prominently on display at the New York International Auto Show, the app does away with key fobs and puts the key right on the user's phone. Using the device's Bluetooth capability, the app can do just about everything that a standard key could do -- from unlocking the doors to popping open the trunk to even starting the engine of the vehicle without turning the ignition. Beyond just convenience for the primary holder, the Volvo app also allows others to take the wheel without requiring a physical key. Users are able to grant digital keys to others, allowing them temporary or ongoing access to the car.