Maybe I am a nutcase. Enough people seem to think so, and where there's smoke and all that.
I just look at it like this. Mankind survived on this planet for thousands of years (longer if you believe some) without the ability to talk on a cell phone while piloting a motor vehicle at the same time. 20 short years ago, the thought never entered our heads to do so. Now we act like we can't live unless we are allowed to do this. That to me equates to a simple convenience issue, not life or death. Until, that is, someone gets too involved in their copnversation to safely navigate said vehicle.
I wonder how many people would make the argument if a cell phone addict wiped your kids off a sidewalk some day. And sadly, it's gonna take enough people getting killed to stop the rest of you from doing it. Until then, it'll be all "I can do it, I don't see what the big deal is".
Study after study after study has shown conclusively that telephone conversations are handled by the brain differently than conversations with a passenger. The brain is not equipped to consistently be able to attend to both tasks fully. And people will neglect their driving to talk on a phone...we all know it. Still...
I don't own one (my job issues one and requires I carry it), and you couldn't pay me to sign up for one. I just hope I don't meet you guys in traffic anytime soon.