App developed to reduce driver phone distraction

If a smartphone app could accurately determine where you were sitting in the vehicle while accepting an incoming call, would you download and use it? How about if you were driving whilst taking a call and the app had the capability to take over by either silently sending the call to voicemail or even send a text alerting the caller that you couldn't take the call right now as you were driving? I read a really good article on Green Car Congress (a website whose mission is "to provide timely, high-quality editorial about the full spectrum of energy options, technologies, products, issues and policies related to sustainable mobility") titled -  New mobile phone app identifies driver phone use, enabling action to reduce distracted driving, which reported that such an app has been developed by a team at Rutgers University and Stevens Institute of Technology in America aimed to reduce distractions if its user is the driver. The article best explains how the technology for the app works - "The phone generates high-pitched beeps and transmits them to the car stereo over the Bluetooth connection. The beeps are spaced in time across the left, right, and if available, front and rear speakers. After sampling the beeps, the app uses a sequential change-point detection scheme to time their arrival, and then uses a differential approach to estimate the phone’s distance from the car’s centre. From these differences, the app makes a “passenger” or “driver” classification". I'm not sure if I need my smartphone to have an app that does this, as I use bluetooth or simply don't drive and talk using my handset. Although the statistics quoted in the article are from the National Highway Traffic Safety Administration in America ("one in 20 traffic accidents involve a driver talking on a cell phone"), our Directgov UK services website says, if you use your phone when driving, you're four times more likely to crash. Directgov also has an online game, the driving challenge, which tests your reaction and shows the dangers of driving and using your phone. For heavy mobile phone users, especially those that use them for their in car mobile office, this could be a handy app to help reduce distractions that can lead to accidents while driving and using your phone. The article posted in Green Car Congress website is very well written and well worth a read. Please take a moment to read it in its entirety by clicking on the Green Car Congress links above.