Sorry if I wasn't clear. Microsoft has actually tried to require that any ARM devices on which Win8 runs cannot ever run Linux. The difference between this and

Sorry if I wasn't clear. Microsoft has actually tried to require that any ARM devices on which Win8 runs cannot ever run Linux. The difference between this and the XBox is that Microsoft doesn't actually manufacture any ARM devices; and moreover Windows as an operating system is more ubiquitous than the XBox firmware. They are clearly intending to use their market share to eliminate Linux on ARM devices. I can see how people might say this is their right, but it's hard to deny that it's their intention, I think - even if you concede (though I'm not sure I'm willing to) that that intention is ancillary to security concerns.