Almost half (49.7%) of U.S. mobile subscribers now own smartphones, as of February 2012. According to Nielsen, this marks an increase of 38 percent over last year; in February 2011, only 36 percent of mobile subscribers owned smartphones.  This growth is driven by increasing smartphone adoption, as more than two-thirds of those who acquired a new mobile device in the last three months chose a smartphone over a feature phone.

Overall, Android continues to lead the smartphone market in the U.S., with 48 percent of smartphone owners saying they owned an Android OS device. Nearly a third (32.1%) of smartphone users have an Apple iPhone, and Blackberry owners represented another 11.6 percent of the smartphone market. Among recent acquirers who got their smartphone within the last three months, 48 percent of those surveyed in February said they chose an Android and 43 percent bought an iPhone.