Any idea where one could learn more about the legally binding agreement? Especially wondering (i don't expect you to answer these, just wondering if you happen to know or know where one could read about it):

1. When was this entered into

2. What there "good and valuable consideration" exchanged and what was it?

3. Are there any other projects in an agreement like this?

Edit: Great resource, still reading through it and the many links: https://kde.org/community/whatiskde/kdefreeqtfoundation/