Jack Adams, the famous Solaris hacker was at FOSDEM! See this video interview recorded by Bruno Souza where Jack Adams interviews Chris, member of NLOSUG:

By the way, if you've never been to FOSDEM, it's a really cool no-marketing-bullshit kind of conference, just geeks and open source software and lots of discussions. I really enjoyed FOSDEM including the evening events in Belgium pubs. Only next year I will avoid drinking fruit beer, the morning flight was not so good because of my beer experiments :)