PC Perspective has just published an editorial looking at Intel's upcoming Skulltrail platform and current multi-GPU configurations.

Perhaps the most appealing part of Skulltrail is that it was revealed it would support NVIDIA SLI technology - the first non-NVIDIA chipset motherboard to do so. That is the power of NVIDIA's nForce 100 chips - basically PCI Express bridges with custom NVIDIA logic in them to accommodate SLI configurations. And with the recent release of NVIDIA's 3-Way SLI technology, we were really looking forward to pairing Skulltrail's 8-cores of processing power with 3-Way SLI to overcome any potential bottlenecks for PC gaming. Apparently that will not be an option though.

Intel Skulltrail and Multi-GPU Graphics: Mixed Results