Yes these previews do, and I am quite excited about this. Practicality took over for a while. But anyways, look at other computer parts that were supposed to deliver "great preformance" and be "revolutionary" and turned out to be "less than anticipated"; PIV for example. I am just being cautious. Law when it comes to computer products: do NOT buy on hype or previews. Now I could be completely wrong, but that will have to be seen.
This does look like a damn fine chipset though, still, mainboard manufacturers seem to take the longest f**king time getting stuff out the door. How hard is it?! Take the reference design, add a few minor tweaks, and shove it out. Some retooling maybe, but most likely not.