[gutnor]

I don't think they care about OSX penetration, but they care about their competitive advantage of controlling both the software and hardware. Stuff like retina display was hugely easier to introduce by Apple than any other constructor thanks to having OSX in house and only their hardware to support.

Investing in Linux would not be a problem it just means that is becomes just a tiny bit harder to do whatever they want on the hardware side. I'm surprised they still maintain Bootcamp.