mobile phone
saturday was the last day of the conference. the bloke who sat in front of me was obviously from a less well developed country and had brought his mobile phone with him in his briefcase. it consisted of a rotary dial phone and massive battery
The technology that permitted the development of small mobile telephones was obviously the abandonment of the rotating dial. I wish that I had a rotating dial phone now. Maybe someone will make a mobile phone with a large saucer size rotating dial for old times sake?