The average adult is required to be available by phone. Not by snapchat, not by skype, not even by text message. By. Phone.<p>In tech-land and teen-land you can specify platforms to each of your relationships. But in the average American&#x27;s day, doctors, daycare providers, clients, etc are all going to be contacting you by phone.<p>Without being required to carry around the phone part, a pocket-sized tablet would have 10x less adoption than it does today. &quot;smart <i>phone</i>&quot; it still is.