Odd; I never seemed to have posted this, when the topic was fresh:
i would also like to clarify the license of the logo images on http://pike.ida.liu.se/download/logotype/
i believe there is no problem with making them gpl or mpl since they are protected by a trademark anyways.
Have you ever seen a project whose identity material is GPL? (Not a rhethorical question, mind you; I just find it very hard to picture, so I ask from curiosity -- examples would be of interest to me.)
From my point of view, making identity stuff like logos free for
anyone to reuse for their own purposes in any way is saying "we don't mind anyone (ab)using pike logos et cetera to give stuff like malware, spam senders and other treacherous software some of our good name and credibility".
As I understand free licenses, the point is to allow anyone to fork it and let the code live on under new maintainership, without any prior agreements with anyone, granted that the new regime makes up their own name and brand for the fork, so the old project can keep running its operation just as usual, and the two projects can even compete and be on friendly terms with one another, without seeding confusion about what is what.