Facebook has released some statistics for its mobile application on different platforms, and the results are pretty interesting to look at. iPhone is right ahead with more than 104 mln active monthly users. BlackBerry goes second, with almost 60 mln, while Android is enjoying no more than 12 mln users. So, what do these numbers tell us? Last counted, there are more than 500 mln users of Facebook across the world, and it turns out that more than a third of them are using mobile applications. Quite an impressive figure!