I use a cell phone mostly for emergencies. Three times in the past I have been in need of assistance on the road a long way from home in a motor home, and I got the help I needed thanks to a cell phone.

I don't gab on any phone just to talk, and I also resent those twits who look like the phone is some sort of prosthetic device without which the twit would die.

The cell phone didn't invent bad manners, it does, however, enable the display of bad manners.