It definetly looks like it's in for a case re-design. The thing that bothers me, though, is that if the motherboard looks like it woudl fit into the case with all the ports on the bottom, and the PCI slots on the top so that the power supply / drive cables don't have to travel through the whole case. The only reasons that I can see for this design are:
1. A true, desktop form factor case. (but those are kinda stupid and impractical, and would hamper Apple's easy-upgrade efforts)
2. Rack mount form factor.
I don't know much about the different form factors for rack mount computers, and I have no real idea why anyone would want Air Port in a rack mount, but this is the only other way that I can see this motherboard fit practically into a computer. I do know, that this would justify the use of built in RAID (even though it would be nice on the regular desktops)
I do think that the processor card connects just to the right of the RAM slots, on that white thing. The port between the ethernet and firewire looks like a modem, but it may be a little small. RJ11 is a little smaller than RJ45, but not a whole lot... I guess it must be a modem...
The only other thing that I can think of, is that this guy is really good with red paint, motherboard parts, exacto knives, and super-glue... In which case, he has some explaining to do to e-bay. Either way, though, he has explaining to do to someone, either e-bay, Apple, or us...