The intrepid [H]ard|Forum user known as sladesurfer has compiled many nice pictures and slides featuring the HD 3870 X2. He also had provided the links to the sources as well. Now we only need a few more details before we can get our 3870 X2 page up. Hurray!
I just found another thread that links to a video of a HD 3870 X2 machine playing Call of Duty 4 at 2560x1600 with AA. In post 5 you can find an undressed pic of the card and a 3DMark06 score at the default resolution.