The document shows data on smartphone operating system market shares in different countries and regions between November 2011 and November 2012. It found that Android grew its market share the most during this period, increasing by over 10% in the US, UK, Germany, and Spain. iOS also increased significantly in some markets like the US and UK. Meanwhile, Blackberry and Symbian saw major declines globally over the one-year period. Windows phone grew more modestly in some European countries.