Introducing the “Breathometer!”  It’s a breathalyzer that hooks on to your smart phone and coudl be the next big thing when it comes to preventing drunk driving.  It’s different from most hand-held devices in that its BAC calculator comes in the form of an easy-to-use app.  Simply plug the breathalyzer into your phone’s audio jack, launch the app, then blow into the tube.  As one Gizmodo writer puts it, “it’s a whole lot cheaper than a DUI.”