Leo wrote:
AFAIK, they enforce GNU Free Documentation License. Some applications' manual were taken out and put in its non-free tree.
You are probably talking about GNU FDL documents with invariant sections. They do have various other documents licensed differently in their package archive. The presence of non-free repository makes Fedora's position much more on stronger on Free software licenses IMO. I consider the licenses of functional software more important that documentation, artwork and content. There are different rules that apply. See http://fedoraproject.org/wiki/FreeSoftwareAnalysis/FSF
Rahul