Back to the topic, I take offense to calling these people "stupid". Ignorant yes, but to blanket traffic texters with "stupid" is a little harsh. While frowned upon, its not illegal. While irresponsible, they're not technically doing anything wrong.
There are days when the only times I get to sit down are in my car and on the throne. Fortunately I haven't confused those lately. Its a fast paced society and for some they feel like its their best opportunity. Its a phenomenon driven by the demands of our society. Ban it.
If the fines and penalties are steep enough, people will stop. With the economic conditions, municipalities would be CRAZY not to enforce and rake the dollars in. People do it cause they can- not being able to text is a MINOR inconvenience compared to finding a cab to haul your drunk a$$ home after a night of drinking and I see that all the time.
Most importantly, a ban on something like this would be a huge wake up to the general public on how dangerous it is. I don't drink and drive for two reasons... the legal consequences and its just not safe.