We've got a confirmation that RV870, first of the performance DirectX 11 card, simply codenamed Evergreen, will end up with a dual chip brother.The dual chip card is in the works and we know that it should be coming roughly around the same time as the single RV870 card.
The card will try to compete for the high end, ultra high end performance crown, to try to take away the performance crown from Nvidia, which they might even accomplished, but as we said many times before, Nvidia will be coming out with its answer.
http://www.fudzilla.com/content/view/14909/34/