Sorry to spoil the party, but boards similar to this are nothing new. Most of them have been for Intel Xeon MP's though.
If you think this is badass, wait for AMD's dual cored Opterons.
http://www.ocforums.com/showthread.php?s=&threadid=293225
Oh, and I beleive the Opteron 8XX's are capable of 8 way processing. We have yet to see an 8 way board though.
Now that is something to think about, 8 CPU's all dual cored, meaning up to 16 CPU's
I would not mind taking one of those
One for a webserver, one for music, one for browsing the internet, and one for typing essays on
All folding of course
And of course one of these:
http://www.tyan.com/products/html/thunderk8w.html
as my gaming rig, so I could put an x800XT in it. Of course with 90nm dual cored Opterons as well
*me slaps self out of dream mode to go get the link for the dual cored Opterons*
EDIT: I got it in there.
Now that I am thinking a bit better, for the same price, you could probably build 8-10 systems with XP Mobiles overclocked to high heavens for the price of one of those. Remember, an Opteron 848 costed $4000 last time I checked. That is for each processor, not for all 4