The issue some people have (those at the other end of accidents) is that unless the accident involves major traumatic injuries it costs too much money and time (for the investigators) to get the records from the phone companies and to make sure they synchronize event times, etc.<p>So, this, presumably, would make that aspect cheaper and afford this evidence for less severe accidents and allow those who believe they should pay less in insurance because they drive more responsibly (as could evidenced by this method) to enjoy those benefits and at the same time presumably drive down the incidence of distracted driving induced accidents.