The guys from Techpowerup found a handful of pictures of the upcoming MSI Eclipse X58 motherboard:
There are two independent cooling units for the chipset and VRM areas. The board sports Dr-MOS component protection, and MSI seems to have spread the MOSFETs evenly, not to congest them at one place. The board provides a diagnostic display feature called D-LED 2, a small LED screen that shows diagnostic information, similar to the LCD poster that ASUS packs with some of its motherboards.
The board features an extensive set of expandability options. It features three PCI-Express 2.0 x16 slots that support both ATI CrossfireX and NVIDIA 3-way SLI for multi-GPU operations. It uses overclocker-friendly features on-board, including the peculiar turbo button. There are also 10 SATA ports, four of which, route to an external controller.