> Many industry analysts say that Windows Phone is likely to ...
In 2011 Gartner predicted that WP would sell 68million phones in 2012 for a 10.8% market share. How good was that prediction ?
http://blog.seattlepi.com/microsoft/2011/04/07/gartner-windows-phone-will-overtake-iphone-blackberry-by-2015/
In mid 2011 IDC predicted that in 2015 WP would overtake iOS
http://wmpoweruser.com/idc-maintains-windows-phone-7-to-overtake-iphone-in-2015-prediction/
By the end of 2012 IDC had dropped this to predict WP to have half Apple's share by 2016.
http://wmpoweruser.com/idc-predicts-11-4-smartphone-market-share-for-windows-phone-in-2016/
At this rate of change in prediction by next year they will predict a 3% share for WP by 2020.
The real problem is that Nokia sells most WP phones at a loss plus they are subsidized by MS, effectively they pay nothing for the software. It may build market share but eventually they will have to try to make a profit.