Over the past 150 years, Nokia has evolved from a small paper mill in Finland to a global telecommunications leader. Nokia has disrupted into various industries before becoming a telecommunications giant. Nokia's mobile phone platforms included Symbian, MeeGo, and Meltemi. In 2011, Nokia announced a partnership with Microsoft to build a new mobile ecosystem using the Windows Phone platform. Currently, Nokia focuses on Windows Phone and Symbian 40, having decided not to continue development of MeeGo and Meltemi. Nokia's main competitors are Samsung, Apple, RIM, and HTC.