Similar to my answer for your profiling for texting question:
Phones should be taken from cars end of. You should be made to carry your phone in your boot so that you do not have access to it without stopping your vehicle. Driving is a privilege not a right. Learning to drive and driving tests should be seriously ramped up worldwide.
"I didn't know that" is no excuse. Obey the rules or WALK,
In addition the devices you mention I feel the same way about. No screens should be visible to the driver. In the rear for children yes but not the driver.
The driving tests are very poor. People should not be given licences until the can truly drive.
I have zero tolerance for peoples inability to operate their vehicle properly,