Smartphone - 58% of all US adults source - http://www.pewinternet.org/data-trend/mobile/cell-phone-and-smartphone-ownership-demographics/ http://www.pewinterne

Smartphone - 58% of all US adults source - http://www.pewinternet.org/data-trend/mobile/cell-phone-and-smartphone-ownership-demographics/ http://www.pewinternet.org/data-trend/mobile/cell-phone-and-...