In defense of Mr Tweak, he did use the drivers that will ship with these cards.

Also when ati hardware showed poor performance with early drivers, noone blamed the review website, everyone blamed ati.
In the end, nvidia had loads of time optimizing a driver for a sli card that is based on a generation that's been around for how long now? Nothing new about sli'ing these cores together...

Further more, I am sure this article on tweaktown will get a follow up if it turns out that with the driver that is about to be released the results are much different.

I think the article is nice. Some games work, some don't yet. It gives an impression of the potential in the few games where it does work well, and I am glad there are websites like tweaktown that don't cooperate with those ridiculous NDA's.