Skulltrail is the new platform from Intel that will bring eight core computing to the masses. Well, not so much to the mainstream, but to enthusiasts who want the ultimate PC for gaming or just plain bragging rights.
Skulltrail is essentially a Stoakley platform for the server built using the Seaburg MCH. It will take two Socket LGA771 processors, similar to an Intel Xeon. However, the new Extreme class processors are tailored for desktop use, so it's actually a modified Yorkfield rather than a Harpertown. The Yorkfield quad-core processor is unlocked, so it will allow overclockers to tweak the processor frequency easily.
The motherboard comes with four PCIe x16 graphics slots and each pair of the slots are equipped with an NVIDIA SLI bridge that is similar to the one used in the single slot dual GPU versions of the card (e.g. GeForce 7950 GX2). This bridge allows the Intel board to support SLI, up to four cards. Basically, this is one monstrous machine that will leave AMD's 4x4 in the dust.
Although specifications look good, especially with the Seaburg MCH which comes which a large 24MB snoop filter, the motherboard will require expensive FB-DIMM memory. Thus, you can expect to fork out a huge investment if you want a fully decked out system.