Angry Birds arrives on Facebook
THE POPULAR iPhone app Angry Birds has been launched on Facebook in a free version that can be played on internet browsers.
The game, which has been downloaded 500 million times - and even said to have David Cameron as a fan - involves flinging cartoon birds at pigs.
On Facebook, users can play the game using a mouse to fling birds across the screen - rather than a finger as they would on the iPhone's touch screen.
Even before the launch, the game had 15 million "Likes" on the social networking site, the Daily Mail reported.
The Facebook version will allow users to pay for more birds and other in-game extras, as well as sharing scores with others via News Feed.
Peter Vesterbacka, chief marketing officer of Finnish parent company Rovio, said it was hoped that 40% of Facebook users would pay for add-ons.
The hit game is Rovio's first big success after producing 50 previous games, selling 500 million copies at 59p each to iPhone users.
The company now also sells a million Angry Birds toys and a million T-shirts every month.
There are now plans for Angry Birds activities parks around the world including the UK and even an Angry Birds film.
Recent figures showed Britain's economy lost more than £800m a year to games played on smartphones at work.
Stuart Miles of independent gadget site Pocket Lint told the Mail: "Gaming has gone mainstream with Angry Birds. Everybody from my three-year-old son to my granny can play these games."
David Cameron last month boasted in an interview that he had completed the game.