I mean, I love the possibilities that could arise from this, but I also see the difficulties as well. Too many people can't seem to live without talking/texting all ready. I did an informal survey one day, where I was about for a couple hours, and I counted the number of people who were talking & texting while driving. In 2 hours, I counted almost 300. Compare that to my population, which is only 11,000. I saw even one guy with no hands on the wheel on a busy interstate that runs through my city (one hand with the phone, the other resting out the window). I can just imagine how this would be with the display on contacts. And even if they found a way to disable the while driving, someone will find a way around it, and make it public.