Gamespot.com is giving away free DLC codes for Assassin's Creed: Revelations that unlocks Ezio's Turkish Assassin Armor.
PS3 Link:
http://www.gamespot.com/event/codes/assassins-creed-rev-ps3/
360 Link:
http://www.gamespot.com/event/codes/assassins-creed-rev-xbox360/
The fine prints says it is...