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POPSStrip mining of OpenOffice.org One of the reasons for IBM’s advocacy of Apache licensing for OpenOffice is that IBM includes the bulk of OpenOffice.org code in Lotus Symphony. Under Sun’s stewardship of OO.o IBM was able to re-use OO.O code in Lotus Symphony – even though the code was licensed under the LGPLv3 – because ownership of the code was assigned to Sun, and copyright assignment gave Sun the right to redistribute contributed code under any other licence. Free software licenses depend upon the framework of copyright law. Copyright depends upon the ownership of the code, and ownership can be re-assigned. Re-assignment of copyright can be used for positive ends when assigned to a non-profit foundation, but can also be used to render the purpose of a copyleft licence null and void. (Big software/hardware vendors have it made, they have people doing their work for free… A free workforce)