Divinity 2 is out in US on January 5 2010, but in rest of Europe the English version is available on 6 November 2009. I preordered and got it on 30 October, though.
I'm getting Dragon Age tomorrow but indeed, one cannot really compare.
Divinity 2 is action RPG in the style of Dungeon Siege 2, Titan Quest... only more story driven.
Dragon Age is party-based tactical RPG in the style of Baldur's Gate.
@DeviRyuuD: Dragon Age is supposed to be 60 hours of gameplay at least... probably 100 hours the first time... so I doubt 6-7 hours is the middle fo the game...