If we are talking strictly about the kernel, I doubt its that heavily modified (more stripped down to what they need).

The argument for the BSD license seems to be that people should be free to not disclose there source code... but why anyone would want to work for free to help Microsoft and Apple make a profit off of it by making it proprietary is beyond me!

Dear intel,Already Made My Decision
Never trust a computer you can't repair yourself.
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scientology has been getting alot of attention recently

When the rich wage war, it is the poor who die.
Where are the WMD's that our governments used to justify the war?