Angry Birds Friends comes to Android and iOS on Thursday, join with friends to hold tournaments
Angry Birds Friends is coming to iOS and Android on May 2nd
Unlike the regular version of the game in which one player is battling his own high score and tries to run up enough points to get to the next level, with Angry Birds Friends, you are battling other people in weekly tournaments where medals are awarded to winning players. Pricing is an unknown at this point, but with the game going mobile on May 2nd, all of the answers to your questions will be out on Thursday.
source: Roviovia AndroidCentral