[cthulhuology]

They do already and have been for a couple decades. Dell in particular has had a long history of doing so. Personally, I have worked for a couple companies that have done just that. Now when you look at certain classes of machines for specific workloads you will see engineering specifically for Linux. But when most people look at MSFT & Apple they are thinking about the desktop. And if you look in certain corporate environments, you will find Linux thin clients, but those tend to be very specific highly regulated environments.