Have you had another idea you’d pay if existed? 1. A device that rings a bell or flashes the lights in any/all rooms of my house if my cell phone is at home and rings. This way I don't have to carry it with me everywhere in the house. 2. A service which lets me know which restaurants have excess capacity and will give me a discount if I come right now. 3. A reasonably priced dependable on-line grocery service that de…
Pretty sure this would have the opposite of your desired effect. Nothing will distract people more and have them fumbling around with their phone than if a call drops, GPS loses signal, streaming radio stops, etc.
Obviously, people shouldn't be doing these things in cars, but I think it's always interesting to think about unintended consequences. Also, I'm pretty sure your (7) was in jest, anyway, but just playing along here...