Vincent,

First MOL is not necessarely used to run OSX.
It can run a lot of Linuxes and BSD variants we do not have yet on the Pegasos.
Even older MACOS had no such EULA requiring the use of an Apple Macintosh.
Then to finish EULA are not above country laws. There is no known case about a personnal users being sued by breaking the EULA yet.
This clause in the EULA is essentialy to prevent Apple to support OSX on older MAC clones such as power computing and UMAX.

I agree that Genesi should certainly not promote the use of it as the point is not to sell the Pegasos as a cheap macintosh clone.

But going after individual end users is ridiculous.
Bleem won the case when sued by Sony. The law and the judges prevail on the laws companies try to enforce.