In the mobile operating system market, Apple iOS and Google's Android stand as the two dominant players, with other platforms failing to achieve similar levels of popularity. Nevertheless, Microsoft continues to push forward with the expansion of its Windows Phone mobile OS, recently announcing that more than 40,000 mobile applications are now available for the platform.

All About Windows Phone reported that a great deal of this development has happened recently. Out of the 40,189 apps currently available, produced by 10,731 different software developers, 10,882 debuted in the last 90 days and 4,770 were added in the last 30 days, a total of 15,652 in approximately four months.

If growth continues at the current rate, the Windows Phone app marketplace may include as many as 50,000 software smartphone accessories as early as the second or third week of 2012, and if growth accelerates, that total could be reached before the end of 2011.

According to the Telegraph, this development may have been partially facilitated by the recent European release of the Lumia 800, Nokia's latest high-end smartphone. However, both the Apple App Store and Google Android Market dwarf the size of Windows Phone Marketplace, with respective totals of 500,000 and 400,000 apps.