The average adult is required to be available by phone. Not by snapchat, not by skype, not even by text message. By. Phone. In tech-land and teen-land you can specify platforms to each of your relationships. But in the average American's day, doctors, daycare providers, clients, etc are all going to be contacting you by phone. Without being required to carry around the phone part, a pocket-sized tablet would have 10x…
Heh. My eye doctor just confirmed my upcoming appointment via text message. I'm sure they would be calling if anything outside of the most common case needed resolved, however.