Some great news if you happen to own RIM's PlayBook and love Angry Birds, Rovio has finally made all three of the games (Angry Birds, Angry Birds Rio and Angry Birds Seasons) available for the PlayBook. They are expensive in comparison to the versions in other platforms (US $4.99). Angry Birds has been insanely popular, possibly the game of the year on mobile devices (500 million downloads, that's a lot of beat up pigs!). Angry Birds is reportedly fluid and ported perfectly on the PlayBook.