See my post above. The whitelist is only for running from the integrated graphics port. If you connect to the 3rd party port, you don't have that problem (at least from my understanding).
This part is correct, but...
Virtu can run through either the integrated port or the 3rd party card. They changed the software to allow that, so it isn't just the Z68 that can do that now.
The Toms Hardware article seems to be saying otherwise, or maybe the language is a bit ambiguous. Here's my interpretation:
"Ninety five percent of the time you can use a Z68-based platform the same way you would have used a P67-based box, gaming from any of your graphics cards’ display outputs," [but now with z68 you can do it] "with no white list or compatibility concerns."
Whether this is now allowed due only to a software change and the version included with the z68 is merely the first to include this change (as you suggest), or if there's a hardware change in the z68 that allows virtualizing integrated graphics through the discreet graphics card (as continues to be my understanding), isn't entirely clear, but the latter makes more sense to me. If this were merely a software change then would they have included it in an article on what's so great about the z68?
A third possibility is that it IS only a software change but the new version isn't available as a free upgrade for p67 owners, and is only licensed to z68 board manufacturers (as is discussed further down the article).
Who wants to email Toms Hardware and find out?