Why is it, all the one`s I see have the Damn Mobile clamped to the ear??, haven`t they even heard of cheap hands free sets at least!. Least worse scenario, your never going to stop peep`s using them while driving, human nature won`t go that far that Genie it too far out of the bottle, but at least give them both hands to the wheel!!!
BTW, just before I packed in driving, Volvo had the latest trucks tricked out with a sim card holder, built into the Radio unit!, you could make and take calls right from the wheel. That was over 10 yr ago now!. I guess Bluetooth has rendered that redundant?.
Pete