^ Needs to be some kind of camera recognition of how the cell phone is being used. My cell phone is always on, linked to vehicle for hands free calling and has never caused any safety issues. I don't text (which is probably the most common problem) or handle the phone otherwise while moving.
IMO, the touch-screens in vehicles present far more of a safety issue. Maybe they should be set up so they don't respond to touches while the vehicle is moving.
I don't want ANY nanny-mandated features except ABS and airbags. I don't back over people, leave infants in the back seat unattended, drive sleepy and get out of my lane, or fail to learn to parallel park. Since I'm looking at the road, I don't need automatic emergency braking either.
At the same time, I'm not opposed to these being optional features as long as those who don't need them, can opt out without settling for an otherwise stripped down base/fleet model.
Regarding alcohol, if (and only IF) you get a DUI it is a good idea to have a breathalyzer feature, and maybe to ease up on calibration issues, the court orders no drinking at all while driving for the probation period, not the former legal limit, so the breathalyzer only has to detect any alcohol, not be as precise. Then again IIRC there are certain medical conditions where the person's body produces alcohol but that would be taken on a case by case basis.