Cell phones are useful and necessary and all, but yeah, people who pay more attention to telling their friend how luscious and cute their new real wild boar-skin slippers are than what color the stoplight is... "HELLO, CAN YOU PLEASE DRIVE, I WANT TO GO HOME NOW."
I'm pretty sure that soon, hold-in-your-hand phones while driving are going to be illegal, but the Bluetooth ear things will be fine. My mom got one of those just before getting a new phone, with which it won't work... so now I have one! Thing is, nobody calls me...