Cell phone use impairs spatial activity in brains

Slate - The Mind-Blackberry Problem

An article discussing many of the problems with driving a car and cell-phone usage, texting, even stupidly following a GPS and driving into a telephone pole or tree. Only a few states restrict usage of cell phones while driving, and even then it's hands-free. Though this does little-- talking on a cell phone while driving gives performance similar to driving while intoxicated. Supposedly they have also done brain scans that actually show blood flow moving from spatial navigation parts of the brain to the language centers. Article full of links to other sources too.