Angry Birds Rio was released earlier today and is now available in Apple and Amazon's app stores. It's a free offering in the latter store (today only), while in the former there are four versions of the game - two free (one for the iPhone and one for the iPad) and two paid. iPhone users will have to pay $0.99 for the premium version, while the HD version for their iPad counterparts costs $2.99. The paid versions of the game offer 60 new levels.
Angry Birds Rio presents us with brand new birds and nemeses - it seems it's some evil monkeys that we have to fight this time. Well, if we have to, then we will not hesitate to do the decent thing and help the birds in their crusade against them evil monkeys.
source: Apple and Apple via Pocket-lint