Key2SafeDriving

A pair of US inventors are bringing to market a computerized car key that prevents people from chatting on mobile telephones or sending text messages while driving.
Key2SafeDriving adds to a trend of using technology to thwart speeding, drunken driving, and other risky behavior proven to ramp-up the odds of crashing.

Source: http://www.notepage.net/blog.htm#889

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