According to the results of a consumer survey conducted by the company Kantar , the Windows Phone market share has exceeded 3% - 4% share in key markets
The best numbers were obtained in Germany, Great Britain, Italy, France and the United States where in the last 12 weeks the percentage of penetration of the Microsoft operating system has grown from less than 2% (January 2012) to over 3%, increments up to 6% (in Germany).
In USA even seems that sales of Windows Phone device may have equaled or exceeded the market share from RIM, thanks to the excellent sales result of Nokia Lumia devices
Kantar provides the market share of Windows Phone in Europe could reach 10% in the second half of 2012, a forecast rather credible if you think the advertisements of new devices of various manufacturers, primarily Nokia, which has recently given way to the start of the sales of its entry level the Lumia 610 .