Here are the big reports that recently came to light:
- Texting while driving increases crash risk 23-fold ( http://news.cnet.com/8301-1035_3-10296992-94.html ) based on a Virginia University study
- A Car and Driver study showed that texting-and-driving is far more dangerous than drinking-and-driving ( http://www.caranddriver.com/features/09q2/texting_while_driving_how_dangerous_is_it_-feature )
There are already 14 U.S. states (plus Washington, D.C.) that ban drivers from text messaging.
The Washington Post reports ( http://www.washingtonpost.com/wp-dyn/content/article/2009/07/29/AR2009072902039.html ) that the ban in D.C. has made a significant impact: "A 2006 study by the Insurance Institute for Highway Safety showed a significant decline in phone use by drivers in the District because of the ban. It fell 50 percent initially and remained at that level a year later."
ZDNet : http://blogs.zdnet.com/BTL/?p=22132