AdDuplex: Nokia controls 90% of Windows Phone market

Nokia - or rather Microsoft - now owns 90% of the Windows Phone market. The numbers are from the latest AdDuplex report and reveal other interesting facts of the WP landscape. That the Nokia Lumia 520 accounts for over a quarter of all Windows Phone devices should come as no surprise. That Windows Phone 7 devices account for another quarter, however, is surprising. We keep careful track...