I still don't quite understand why some one would want to spend loads on a board that straps together AMD and Nvidia cards (badly).
Why would you spend a fortune on two cards that don't match?
If you want Physx/Cuda ETC why not go SLI? If you don't why bother mismatching two cards?
I don't understand the real reason that people would want something like this. With X58 and P55 you can run both SLI and Crossfire (seperately). If you are an ATI/AMD fan you would choose Crossfire. If you love the green team you would go with SLI. If you were a fan of both.. Well, you'd be silly to use this due to the costs involved and the poor results. It's driver based. SLI and Crossfire are annoying enough as it is (due to one needing profiles and the other needing actual drivers) but this just throws something else into the mix to cause hassle.
The AMD board reviewed recently was cheap enough for me to actually want. But I wouldn't want it because it can run mixed cards I would want it because it's the only one on the market that can run both SLI and Crossfire with an AMD chip.
I can't even see the point in this technology for people that want to fold. Of course one could say that if you had a 5970 and wanted to fold you could then add in XXXXXX Nvidia card and fold away but why would you? If you were folding you would firstly already be on the green team and would want multiple Nvidia cards, not an ATI.
Strange. Very strange. Seems to be an example of "because we can" but with no real solid reason.