There's a handful of BSD-oriented, desktop-oriented, developers in the Netherlands that I know of. Koos. Raphael. Perhaps some remnants of KDE-NL, or a wandering GNOME developer. Or other desktop systems. Anyway, I'm launching the idea to have some kind of get-together around mid-april (when the weather is nice) somewhere central(-ish) like Zwolle or Amersfoort. The Dutch BSD Desktop Dev Beer Day, or (DBD)2. The plan would be to occupy a cafe somewhere and talk about BSD on the desktop, and in particular porting and keeping the desktop stack up-to-date on all fronts.
Consider this post a call for "hey, who would be interested?"