Windows phone is actually doing well. In Q4 last year 2.75m WP's were sold, and in Q4 this year over 11m were sold. That means its up over 400% YOY.
The real reason for the rise of Android and iOS's combined marketshare is the death of Symbian and Blackberry.








My prediction threads:
Wii U will sell under 40m units (made on 14th September 2012)
PS Vita will sell under 20m units (made on 30th September 2012)
Wii U will sell under 7m in 2013 - I was right







