More than 234 million Americans age 13 and up used mobile devices in April. Nearly 116 million of those using mobile devices are estimated to use a smartphone on a monthly basis by the close of 2012, according to New Media Trend Watch.
That exponential growth is expected to continue. By the close of 2016, an estimated 192.4 million Americans — or approximately 58.5 percent of the U.S. population — will palm a smartphone on a regular basis.