Interesting discussion, for sure. For the record, my bluetooth is wired in my car so all I have to do to answer a call is for my thumb to hit a button on my steering wheel...which is easy to do by feel. I also rarely initiate calls when driving and NEVER in city traffic. If I do want to start a call, my thumb just hits another button and I say the name of the person I am calling - so there isn't much there to distract outside of the conversation itself. I've had enough happen in my life that I KNOW things do happen and can certainly happen to me.

Thanks for the links. I hadn't heard of this research before and will check it out.