RIM has released a bevy of stats to celebrate BlackBerry App World's third birthday, with the firm's marketplace generating a total of 2 billion downloads since launch.

That's from a base of 70,000 apps according to the firm's latest numbers – a figure that means the store has seen an average of 1,940 apps added each month, generating a monthly average of almost 56 million downloads.

Bird is the word

As for the apps themselves, RIM has named Rovio's Angry Birds as the number one paid title on BlackBerry's PlayBook.

It's the only game mentioned in the rundown, however, and – given the relative age of the marketplace, with PlayBook less than a year old - is also the only tablet app to make the list, too.

The rest of the top slots are filled up standard smartphone apps, with German outfit Bellshare taking two of the best-selling spots with BeBuzz and BeWeather.

Shazam Entertainment's Shazam Encore and Motek Americas' Color ID fill out the rest of the top five.

[source: Inside Blackberry]