Unofficial Pictures of AMD's upcoming Radeon HD 6970 has been leaked on some Asia Website. The card which is to be based on the Cayman Core looks to be quite long, Almost 11" in length which is quite big. Also it can be noted from the back that the card isn't the Antilles based HD 6990 because you can seen only one GPU Core on the back.
The card comes with a Backplate and being a Single Core GPU, Its powered by One 8 pin and one 6 pin connector. You can check out the pics below of the card:
More information on the card here.