Valve wants PS3 to open like a Mac not closed like a Gamecube.

[ameratsu]

This seems like Gabe's way of saying he wants the Steam platform on consoles. "Closed" systems to Gabe involve having to put their content on someone else's service. I suspect he would much rather make Valve's highly profitable platform available for new audiences (like they did with mac users). OSX is open in the sense that Valve is able to offer their digital distribution platform on it, while that's not possible with the ps3.