Last weekend, Windows Phone 7 Marketplace surpassed the 60K active applications milestone worldwide. Main contributor to this fact is the strong growth of new applications in January, where around 3000 new applications were added per week.
Another notable fact is that Windows Phone 7 Marketplace overtook BlackBerry App World in terms of available applications globally. This happened because in December and January, the number of applications in Windows Phone 7 Marketplace grew with 1750 more than BlackBerry App World did per week.
However, it does not seems that the winner of the two-horse race between BlackBerry App World and Windows Phone 7 Marketplace is announced yet. Both stores have different strategies in this battle. On the one hand, Microsoft quickly expands Windows Phone 7 Marketplace to more countries in order to gain market-power. On the other hand, RIM tries to attract Android developers by offering PlayBooks for those who submit Android applications for PlayBook OS 2.0 before February 13. The effects of this action is already noticed in the data, because BlackBerry added more new application to App World than Windows Phone 7 Marketplace did last week.