For those that want working friends list (only) syncing between characters,
FriendsWithBenefits still works perfectly in WoW 3.3.5 live (tested, verified here).
But as the poster above mentioned, AuldLangSyne is being rapidly updated
on WoWAce as we speak if you really need/want all its features (I ditched it long ago when Blizzard added its own player-notes capabilities).