May be only Darwin (Score 2, Insightful)

Perhaps the writer tought that Linux and Darwin would compile fine on the machine but this does not guarantee that Apple will port (recompile) the GUI layers of OS X. Just as Darwin compiled fine on Intel, before Apple ported the closed source party of OSX to the Intel architecture.

If on the other hand, the rumor is true: this would be a great leap forward for the PS3 as well as for Apple / OSX