The worst drivers are in South Florida! I lived there most of my life, and was pleased to find better drivers here in Atlanta, with the exception of the "left lane ladies", but that seems to be happening all over now.
There's no question that distractions and following too close are what cause most of the accidents around here, but to single out cell phones seems unfair. I've seen people distracted by everything from make up application to reading a bible (on 400 N bound, early morning) I guess if you want to read something while driving 80 mph, the bible is a good choice!
The issue, IMHO, is lack of responsibility. I might use my cell phone, drink coffe, or even eat a hamburger while driving, but NOT at high speed in heavy traffic. And not in the Cobra
