Has anyone using the GTX-590 or AMD 6990 with CoD?

[Storm of When]

I`ve got an old`ish 4870x2 and Rise of Flight most definately does run in X-Fire, you have to enable or disable full screen mode in the set up page (can`t remember which), and it will X-Fire, it`ll even display the X-Fire icon, i`ve gained a massive amount of stability and fps due to X-Fire in RoF, so will it happen in CoD you would hope so I was considering 2 x 5850 or 6850`s, but i`ll wait till its confirmed one way or the other. Call of Duty WaW also crossfires very well.