The Amazon App store is trying to jump into the app store game in a big way. They have secured exclusivity rights to Rovio's newest bird-flinging, pig smushing game, Angry Birds - Rio. Furthermore, while moving over to Amazonís new system, Rovio also intends to offer ad-free versions of its existing Angry Birds and Angry Birds Seasons for Android games for the first time ever. This is a pretty huge win for Amazon to get hold of one of the hottest selling games ever, on the Android Market. Angry Birds Rio will ship with 60 levels, and have more available for purchase within the game using an in-app purchase system.
Source: SlashGear via Angry Birds Rio for Android to Debut Exclusively in the Amazon Appstore - Full Press Release