Played this on iPod Touch and Android phone before. Now it comes in bigger display, for PC and Mac OS X. As for me, user experience (UX) in iOS still the best!

What is Angry Birds?

Angry Birds is a puzzle video game developed by Finland-based Rovio Mobile, in which players use a slingshot to launch birds at pigs stationed on or within various structures, with the intent of destroying all the pigs on the playfield. Inspired by a simple sketch of stylized wingless birds, the game was first released for Apple’s iOS in December 2009. Since that time, over 12 million copies of the game have been purchased from Apple’s App Store, which has prompted the company to design versions for other touchscreen-based smartphones, including those using the Android and the Symbian^3 operating systems. Rovio Mobile has supported Angry Birds with numerous free updates that add additional game content, and the company has even released stand-alone holiday versions of the game.

via Wikipedia

Main Menu | Angry Birds

Totally it has 45++ levels in each episode.

One of the screenplay.

Bonus Level

So what you have waiting for? Go download it at Android Market (free), Apple Store (paid) or Intel AppUp (paid).