EVGA released some photos of an upcoming dual-socket LGA1366 motherboard with seven PCI Express x16 slots, and six DDR3 DIMM slots per socket. Seems like a nice motherboard for some serius GPGPU computing.
Each LGA-1366 socket is wired to six DDR3 DIMM slots for triple-channel memory, and is powered by an 8-phase digital-PWM circuit. Each socket further has a 3-phase power circuit for its DIMM slots. The CPU VRM for each socket takes input from an 8-pin ATX, and what appears to be a 6-pin +12V (PCI-E?) connector. The motherboard further takes power from a 6-pin PCI-E power connector apart from the usual 24-pin ATX power connector. Some of these inputs may be redundant and needed only for additional electrical stability to support competitive overclocking.
At the heart of the board is what appears to be an Intel 5500 "Tylersburg" or Intel X58, paired with an Intel ICH10-class southbridge. All of its SATA 3 Gb/s ports are located next to it, while a Marvell-made SATA 6 Gb/s controller provides two additional ports. There are seven PCI-Express 2.0 x16 slots in all, driven by four x16 links over two NVIDIA nForce 200 bridge chips. The exact lane distribution is not known. There seem to be two gigabit Ethernet controllers, 8-channel audio, eSATA, USB 3.0, and EV-Bot support.