You're right Kolla, but I did not say exactly what Raffaele reported (we talked about this subject, among many other things, in a phone call). My words, instead, were very similar to the comment posted above by DethKnight.
"If this new Mac will be a closed system (like almost all its predecessors), Linux people would probably prefer the Pegasos2 that, instead, is a 100% open system."
In such a context I mentioned Open Firmware like the basic software component that mediates between (the openness or the closedness of) the hardware and the OS.
