Americans may differ from one another in innumerable ways, but there’s at least one thing that unites most of us: our phones. Ninety-one percent of adults in the U.S. used a mobile phone in 2013, including 77 percent of Americans older than 65. Furthermore, people from around the globe are just as attached to their phones as we are. All told, the estimated number of mobile subscribers worldwide hovers somewhere around 4.5 billion people. In fact, mobile penetration is Continue reading →