Lets see the data on smoking a cigarette, drinking a can of soda, bottle of water, tuning the radio, choosing a CD, operating you iPod.
I think that targeting texting as a specific offense is really bad law; just give the LEO the discression to pull over and cite anyone who is driving while seemingly distracted. That seems to make sense and would even help in those cases where intervention is probably a welcome thing - a parent reaching over the seat to get at an out of control child. How many parents would welcome a traffic stop so that the LEO could correct the little one?
Best regards,
-boggsie