IDC forecasts that worldwide shipments of smartphones, will surpass 390 million units, growing at a compound annual growth rate (CAGR) of 20.9% for the 2009–2013 period. In a market that was once dominated by a handful of pioneers, such as BlackBerry, Symbian, and Windows Mobile, newcomers touting open standards and intuitive design and navigation have garnered strong end-user and handset vendor interest.