Of course, this only makes sense now that there's a newer chip available; especially since the newer chip uses much less power. If they could do it with two 6800 chips, they'll most certainly be able to pull it off with two 7800GTX's.

"During the launch of the GeForce 7800 GTX a representative for ASUSTeK told that the company no longer has plans to commercially launch its dual-chip GeForce 6800-series product. Instead, the company is looking forward to utilize two GeForce 7800-series chips on a single graphics card targeted for hardcore enthusiasts."