Not because of Microsoft’s platform tremendous growth - rather because BlackBerry is sliding very, very fast. Mapping the trends on StatCounter shows that Windows Phone and assuming sales continue moving at a similar pace, we might see WP take over BlackBerry as soon as in this November.
Now, what’s not accounted for in this extrapolation is the fact that Windows Phone is expected to receive a big sales push once Windows Phone 8 and the new devices with it launch around October, as expected. BlackBerry 10 on the other hand has been delayed, and is now set to arrive only in 2013. So chances are that Windows Phone will outgrow BlackBerry soon, the real question is when exactly. Feel free to place your bets and argumentation for them in the comments below.
source: StatCounter via WMPowerUser