That totally fly mobile game, Angry Birds turns 2 today! Hooray! To celebrate, Rovio is celebrating this ‘birdday’ with the release of a birthday update for Angry Birds that features 15 brand new birthday cake levels as well as new special achievements, menus AND graphics. In addition, the new Rovio chanel provides fans with a variety of content which is only a tap away, giving instant access to news, games, videos, Facebook, the Angry Birds shop and much more. Angry Birds may of only hatched 2 years ago, but it has already been downloaded 500 million times worldwide, making it the most popular app ever and one of the worlds fastest growing international brands. I have no idea why these birds are so angry, I’d be pretty happy right now if I was them!