It was amusing/saddening during the large power failure we had a couple of weeks ago that took down our town's cell signal too. Almost all of the people on the sides of the road were zombified, phone in hand, looking like they couldn't function normally without their connection.Ban phones all together. We got along fine without them. They've caused more issues than they've solved.
I do believe voice activation should be a much more standard part of car control. Some people spend way too long twiddling with their radios, or navs.

