As has been said, the Intel Skulltrail is the latest of these boards. It is, however, designed for extreme enthusiasts and is prohibitively expensive. It also has FOUR 16x PCI-E slots so you can install FOUR graphics cards in quad SLI or Crossfire. As has also been said, it only takes a certain type of CPU, which happens to be the LGA771 socket - not exactly mainstream, as the most common application for this socket would be the awesome Intel Xeon processors. This would mean you could have 2 quad core CPUs on one board - OCTOCORE FTFW!