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How good will it be to have a car key that locks your handphone if it ever got stolen? But what good is that actually? Instead, this is about safety driving.

Once it's set up, as soon as the driver extends the key, the fob sends a signal to the phone via Bluetooth or RFID tech, disabling the phone from making calls or texting (and putting a big Stop sign on the screen, natch). Anyone calling or texting the phone will get an automated message (probably something like, "Can't talk — driving"), though calls will still get through if you use a hands-free device.

While still in the development stages, the tech could reach the market as early as next year, and the researchers estimate the cost at a reasonable $50 per key. Honestly, we can't find anything to complain about on this one, apart from the terrible name. It's a great idea, and not just for teens. Can anyone think of a reason this shouldn't be standard in all new cars?

University of Utah, via Engadget