Survey says `` just over half of cell owners '' have smartphone or use smartphone platform . Biggest growth in smartphone ownership was among adults aged 18-24 , survey says . It says highest growth in smartphone use occurred in the lowest income bracket . Comment:
Survey says `` just over half of cell owners '' have smartphone or use smartphone platform . Biggest growth in smartphone ownership was among adults aged 18-24 , survey says . It says highest growth in smartphone use occurred in the lowest income bracket . Amy Gahran : Smartphones may be becoming norm , but benefits may not be spread evenly .