Thanks to the popularity of the iPhone, the number people who own phones with touchscreens in the U.S. has skyrocketed by 159 percent during the past year to 23.8 million users. Release.

According to comScore (NSDQ: SCOR), touchscreen phones are growing faster than even the overall smartphone market, which jumped 63 percent in the same three-quarter period ending in August. There are now roughly 23.8 million touchscreen owners, and 33.8 million smartphone owners. comScore’s SVP Mark Donovan: “This is a trend that should continue to pick up as additional touchscreen devices, many of them running the Android operating system, arrive in the market before the holiday shopping season.”