NEW YORK (

TheStreet

) -- Wildly addictive smartphone game

Angry Birds

is the most popular app of 2011, according to a recent poll. Nearly 30% of voters named the game, in which users use a virtual slingshot to launch birds at evil pigs, as their favorite.

Angry Birds

has also been named the most popular paid app in Apple's App Store this year.

Zynga's

Words With Friends

came in a close second with 28% of the vote. The Scrabble-style game is so addictive that actor Alec Baldwin was reportedly booted off a flight for refusing to put away his phone while playing it.

Trailing behind was

Pandora's

(P)

online radio app with 24% of the vote.

This holiday season was a major boon to smartphone developers. On Christmas Day, users downloaded a quarter of a billion apps, nearly double any other day in the history of iOS and Android devices.

--Written by Olivia Oran in New York

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