We managed to get a picture of a 8900GX2 board and it is a dual G92 product with a two PCBs. Due to a time limit we will tell you more about it tomorrow.
The product is still not finalized, but it looks like it will be ready to be shipped in February.
Until then, please enjoy the picture.
Update: from what we learned at the show it will be called Geforce 9800 GX2.