Textalyzer device would “would display a summary of what apps on the phone were open and in use, as well as screen taps and swipes”…

Police may soon have technology to tell if a driver involved in an accident had been using a mobile device behind the wheel. Privacy advocates worry about letting police snoop on people’s phones.

Source: Breathalyzer For Texting? Distracted Driving Targeted With New Device : All Tech Considered : NPR