The sites which leaked the advance info regarding the Titan Z seem convinced that a 780/780 Ti based GTX 790 dual card was incoming and that it would be distinct from Titan Z. My guess is that Nvidia would play out the same scenario as happened with the original GeForce GK110 launch - snag the price-no-object crowd with Titan, once the initial sales buzz dies down, launch a more price friendly number (700) series card that AIB's would have more input into. Likely, Nvidia could tune the board frequencies for performance once the 295X2 arrives...although it wouldn't surprise me for AMD to counter with an lower cost air cooled dual 290 (no-X) either. Haven't owned a dual board since a GeForce 6600GT duallie (early adopter-itis) , and I don't see any of these offerings convincing me to return to a dual card. If all these SKUs come to pass, it seems like both camps are treading water until 20/16FF comes onstream, and they more boards they launch, the less likely it seems that we'll see an early appearance of the new process.