WP may not pass iOS's market share in the US market by 2015, but it is growing by leaps and bounds in many of the other major markets (e.g., Europe, Russia). A

WP may not pass iOS's market share in the US market by 2015, but it is growing by leaps and bounds in many of the other major markets (e.g., Europe, Russia). A large part of this success is thanks to the lower-end Nokia Lumia models like the 521, which are competitive with lower-end Android phones on price while being generally higher in quality.