The device, licensed as Key2SafeDriving, runs on wireless technology that is placed inside a standard car key. When the key is placed in the ignition, the device uses wireless technology (Bluetooth or radio-frequency identification) to electronically "jam" the phone from making calls or texts, displaying a red "stop" sign on the screen. (The device can be programmed to allow users to call certain pre-approved phone numbers, such as 911 or parents' cell phones.)

Incoming messages are automatically answered by a standard away message: "I am driving now. I will call you later when I arrive at the destination safely."

At any given time, 6% of drivers are talking on a cell phone while driving. For teenagers, that number is 10%. Studies show that drivers using cell phones are four times more likely to be involved in an accident than other drivers.

Whether the Key2SafeDriving will become eligible for a car insurance discount is yet to be seen. But if the device works as advertised, it should make the roadways much safer for all drivers.

Too bad it's only being marketed to teens and not adults, too...