Siliconera reports that the dungeon crawler Torchlight will be receiving exclusive content on XBLA.  New armor and weapons have been added, as well as additional quests for the player.  Two perks have also been added to the game.  The first, unlocked by inviting a friend to buy the game, will unlock a special potion.  The second, available for the first two weeks after the game’s release, turns the player’s pet into an ogre.  Runic also promises an additional item once the community has invited enough of their friends to play the game.

Source: Siliconera