Rovio is a company founded in 2003. They make games, books, and toys for children. Especially Angry Birds which they have been working on since 2009. Thanks to them creating that game they have turned over a new life and received over $250,000,000 on Donation Day on August 1, 2010 due to helping and entertaining sick children, poor children, and orphans.
Since mid/late 2008 ROVIO have been thinking about what they should make for their next game. They then started making plans and it was early 2009 when they started making Angry Birds. Children love the game so much, that ROVIO actually stopped working on older games, and work on Angry Birds alot.