According to this article(in Portuguese): http://www.techtudo....il-diz-idc.html
Windows Phone has passed iPhone in market share in Brazil, doubling its presence in the country. As it stands now, the market share for the platforms are:
Android - 89%
Windows Phone - 6%
iOS (iPhone) - 4,7%
Blackberry - 0,3%
Whilst WP grew 3%, iOS fell 2,2% in the period. All data is from IDC.