The document discusses trends in mobile operating systems. It analyzes the strengths, weaknesses, opportunities and threats of major mobile OS platforms including iOS, Android, BlackBerry, Symbian, Windows Mobile and webOS. It also covers emerging platforms like Chrome OS and discusses new types of mobile devices including tablets, e-readers and internet-connected game consoles. Market share forecasts from Gartner predict Android and iOS will continue growing their share of the smartphone market over the next few years.