I think we are agreeing here. We can guess that the original law's intent was that mobile phones were not to be used for any purpose while driving, with a specific narrow carve-out for "hands-free listening and talking." But, instead of saying that, it was written both too narrowly and too vaguely and had to be expanded and clarified later.

I also agree that the next fight is going to be about mounted vs. unmounted, and the distinction between a driver's phone attached to the vehicle vs. what we are starting to see in cars now, which looks and functions exactly like a tablet rigidly attached to the vehicle, except the tablet itself is made by the car manufacturer. If one is not legal to use by taking your eyes off the road to tap and swipe, then the other one should not be legal either!

Honestly, I wish we could just legislatively get touch screens out of cars in general. The roads would be safer overall.