I have (packed away somewhere safe) a copy of 'Radio and Hobbies' magazine that was published in Australia early last century.
In it there was an article touting a radio receiver that you fixed to the running board of your car. The article stated that while it was not practial to use while the vehicle was in motion, it explained that it was expected that laws would be passed prohibiting 'radioing' (sic) while driving as it was a distraction and would promote unsafe driving.
If you look at the range of devices currently built into most cars and look back over time it's safe to say that many people have adapted to the increasing number of information sources available to the driver and can capably prioritise their actions.
The morons that insist on texting while driving are probably just the same ones who previously shaved or put on their makeup while behind the wheel. The real problem is not the technology, but the idiots using it.
These people will still do dumb things irrespective of the law - why punish those that are using the technology safely?