30 million downloads for the free Android version of the Angry Birds5
Angry Birds is not a game you play once and then forget about. Stats show that 80% of those Android users who download the game also install the updates which shows that once the Angry Birds gets in your blood stream, it stays there.
The numbers were disclosed by Rovio's Peter Vesterbacka, who is speaking as part of a Google-run Android monetization panel. And if anyone should know how to turn a Google application into money, it's Rovio.
source: Joystiq via AndroidCentral