Mashable did an interesting article on the success of the iPhone camera app Instagram. The application combines social networking with photography so well that in the eight short months since its release Instagram now has millions of users.

Let’s get to the current stats:

Total users: +5 million

Total photographs uploaded: +95 million

Average number of photographs posted per day: 860 000

That is pretty darn impressive. Instagram’s early success can be partly attributed to a very popular API that’s now being accessed by more than 2,500 applications.