Get your fingers ready; Angry Birds has been updated for the iPhone/iPod touch. The top selling game now includes new levels to keep the birds flying into 2011.

The 1.5 update includes 15 new levels, and a new theme called Frontier Badlands. Additionally, there is a new Golden Egg level: “y’all city slickers.”

The new Mighty Eagle is a bird that helps you if you are stuck on a level. The Mighty Eagle can also be used if you are out of levels to play.

I’ve been playing around with the Mighty Eagle on both my iPhone and iPad. I found it to be a wonderful addition to the game. It is definitely worth the in-app purchase price of $.99.

Here is the video:

Angry Birds also includes Game Center support.

Created by Rovio, the game is the top selling iOS game of all time.

Priced at $0.99, the game is available in App Store.