Your right though most other manufacturers dont seem to have stock anywhere. The MSI looks the best i believe, but i dont even know of any reviews... maybe becuase phenom has had so many issues?
People over in the UK are getting their hands on DFI/Sapphire 790FX boards and they run the X2 line of CPUs extremely well. That was my plan till the Phenom gets worked out.
apparently the plan was that once 4 gpus are fitted they all run at 8x... but because the slots are PCI-e2.0 that actually doubles the bandwidth over the 8x connection... hence theoretically they should get ~bandwidth as a PCI-e1.0 16x
Asus, Gigabyte & MSI available in the UK havemn't seen the DFI yet.
There is a suggestion that some of the mobo companies are holding off to use the SB700 instead of SB600.