Foxconn has a pretty interesting motherboard which they codenamed F1 and Transformer. This board uses the extended ATX format and compared to other motherboards with Quad CrossFire support this board actually has some room between the cards to get proper ventilation.
Looking at the board in the picture above it is hard to find a place to start. Of course the motherboard features four PCI Express slots as you can tell by the four ATI Radeon HD 2900 XT graphics card that are running together in CrossFire. If you look a little closer you will notice that the board has not one, but two 24-pin ATX power supply connectors. One has to be used and the other is an optional power header for just the graphics cards, which is innovative. Look a little closer and you'll notice that the board doesn't have heat pipes on it. Those copper pipes are water cooling tubes for the chipsets! Our readers that are extreme cooling experts should have noticed the power cables coming from the north bride. That would be the power wire for the Thermoelectric cooling plate that is used to drop the temperature of the chipset even more.
This isn't the final version yet but this motherboard looks quite impressive for enthusiasts with a lot of money.
More info at Legit Reviews. They also have more information about the Foxconn BlackOps Intel X48 motherboard which supports air, water and LN2 cooling.