MacOS X goes proprietary

[mdlbear]

Macworld UK - Apple closes down OS X

Mac developers and power users no longer have the freedom to alter, rebuild, and replace the OS X kernel from source code. Stripped of openness, it no longer possesses the quality that elevated Linux to its status as the second most popular commercial OS.

...thereby demonstrating the reason why Apple picked the BSD license for Darwin, and the reason why Linux, with the GPL, remains open.

Comments

[mdlbear]

That, or trying to prevent people from running it on commodity hardware.