http://multicore.amd.com/us-en/AMD-Multi-Core/Quad-Core-Advantage/Spider.aspx "up to 8 monitors".
Granted, the ad is clearly ambiguous at best. However... there is, as you know, a fundamental difference between supporting multi-monitor output and spanning a game over multi-monitors.
If you had a new ability to SPAN a game over multiple monitors (ala TH2Go), would you only trumpet MSFS; a game that is DESIGNED to span multi-monitors.... or would you be showing screens with WoW, Crysis, Gears of War, CoD4 and all the other huge FPS games that would make users buy these cards in droves??
Based upon the totality of the evidence at this point, I think the most reasonable conclusion is that the functionality is not the same as the TH2Go.... but I do hope I am wrong.
It is nothing but good for us TripleHead gamers than to have more and more acceptance of the concept of triplehead gaming move more into the mainstream.