Angry Birds fans irritated with sequel
Less fowl play for Rovio
Rovio names new CEO
King serves up bittersweet results
Angry Birds flock to China
Angry Birds collide with BlackBerry PlayBook
Angry Birds coming to TV, movie screens
Walmart to stock Angry Birds merchandise
Angry Birds fly to Facebook, and beyond
When good companies go bad
But does it have Angry Birds?
EA to buy gaming publisher