Angry Birds may have lost its first place grip in the iTunes App Store, but it still reigns supreme on the NOOK. And starting today, for a limited time, Angry Birds addicts with a NOOK Color can visit any Barnes & Noble retail location to unlock the free playable character, Mighty Eagle. The Mighty Eagle has already been seen in iOS versions of the game, but it's the first appearance on the NOOK app. It also marks the first offering from Angry Birds "Magic Places", a partnered campaign wi...
