Research firm Distimo released reports for mobile app store belonging to Apple, Microsoft and Google , for January 2011. The company discovered that out of the three major app stores, Microsoft's Windows Phone 7 marketplace saw the biggest growth by 30% followed by Google's Android Marketplace, which saw 18%. Apple's app store saw 1% growth month on month, probably due to the iPad's massive success.
WP7 marketplace will grow, as the Nokia store will join it. WP7 platform will be very interesting one in next couple of months.