Angry Birds is downloaded over a million times a day

"Speaking at Mobile 2.0 Europe – openIDEAS Conference, Rovio’s “Mighty Eagle” Peter Vesterbacka announced that the company now sees over a million downloads a day of its Angry Birds games.
The announcement comes just two days after Vesterbacka told Techcrunch that the company had surpassed the 250 million downloads milestone, noting that the company was also going to release a cookbook and integrate more NFC features into its titles."

Source:  The Next Web, 16th June 2011