Angry Birds for Facebook has launched one day ahead of schedule according to NewsCore. The wildly popular game has been in development for more than a year and was supposed to make its debut Tuesday. Instead, the hotly anticipated title launched late on Monday. The Facebook variant features the same game play as the original mobile app along with added social components, new power-ups and exclusive new levels. The game itself is free to play, with a 20-use power up costing $1. Angry Birds has been downloaded more than 500 million times and is reportedly played by 130 million individuals on a daily basis.