Part of our global mobile and smartphone adoption forecast, this forecast details mobile subscriptions and mobile subscribers (people) in the US. It also includes smartphone installed base and subscriber data. The forecast includes age and income smartphone ownership demographics as well as subscribers by operating system (2011 to 2014 only). It includes historical data back to 2008 plus a five-year forecast. To get a global comparison, please view the Forrester Research World Mobile And Smartphone Adoption Forecast, 2014 To 2019 (Global).