I haven't got to play it, but I like dueling a lot. I hope it is in the release version of the game. And 2v2 looks really fun. I like the "code of honor" that people generally go by also.
There is a 2v2 mode, called Brawl, if I'm not mistaken.
Of course there is a 2v2: Brawl. I share your preference for the duel mode and I am really looking forward to playing brawl with a good teammate. There is also dominion, skirmish, deathmatch and domion, just for the record
