Touchscreen Mobile Phone Adoption Grows, iPhone on top touch-screen device

Touch-screen phone adoption grew by 159 percent between August 2008 and August 2009. By the end of August 2009, there were 23.8 million users with touch-screen mobile phones in the United States alone. In August 2008, just over 9.2 million people were using touch-screen phones. iPhone was the top touch-screen device for users aged 13 and older, capturing 32.9 percent of the touch-screen market.

But it's not just the touch screen that's enjoying strong growth. Smartphones are gaining traction across the U.S. Between August 2008 and August 2009, smartphone adoption grew by 63 percent. There were 20.7 million mobile subscribers using smartphones in August 2008. More than 33.7 million subscribers had smartphones by August 2009.