@vagabondo, stop drinking the FSF koolaid
BSD license is not a free software license? Really?
Actually, most of the time software is released under a permissive license it is precisely for the opposite reason - permissive licenses are the only licenses that allow for all computer users to freely use and benefit from common code. This leads to true code sharing and well implemented standards, for instance BSD sockets, OpenSSL, OpenSSH, BIND, pf, et al. I think you would agree that it's pretty handy all the OS in the world use the same sockets library.
Your beloved GPL licenses only provide that freedom provided that you share any changes you make to that software, which means that they are not used as the basis of products by companies who actually wish to turn a profit.
As a concrete example of this, the server appliances made by Cisco IronPort (email filtering, etc) run a closed source OS based around FreeBSD.
Now, to a rabid RMS lover like yourself, all you see from this is that the FreeBSD project never sees all the improvements Cisco make to the OS.
What you miss is all of the benefits FreeBSD gets from being used this way, Cisco employ a lot of FreeBSD core committers, and the non-core bits of AsyncOS do get pushed back to HEAD, since it is better/easier to maintain for Cisco, and doesn't enable a competitor to get a leg up.
Disclaimer: I was paid to write this by the Secret Anti-FSF Project, which was paid for by Microsoft. Well, you're clearly going to think it anyway.