Mark my words. It's already illegal to text and drive. In some cases it is illegal to drive and TALK ON A CELL PHONE (but not to talk to someone in the seat or reach behind you and whack the kid or the dog. Note whacking the kid might be illegal for other reasons).
Following through on this video:
It will soon be illegal to walk and text
soon after that it will be illegal to walk and talk on a cell
Then it will be illegal to walk and talk to someone else.
Then in will be illegal to walk and chew gum at the same time.
My guess is the person in the video would have failed the last test