Angry Birds is a brand new physics based puzzle game that is published by Clickgamer. This type of physics puzzle is yet to be seen in the App Store, though there have been exploding items, structure building, and crayon type ones. Angry Birds has the basic gameplay mechanic of Boom Blox where you fire items at structures trying to knock them down.
In Angry Birds green pigs have stolen the birds' eggs therefore making them angry, and they're seeking revenge. The pigs are in structures, and you slingshot the birds at the structures to make the structures collapse, and hit the pigs.