Here are pointers to pictures taken during the GetTogether 2004:
SylvainWallez: http://www.anyware-tech.com/blogs/sylvain/gt2004/
Matthew Langham: http://www.flickr.com/photos/silent-penguin/tags/cocoongt2004/
MichaelMelhem: http://homes.managesoft.com.au/~michaelm/image/ghent/
DanieleMadama: http://www.danysoft.org/PHOTO/thumbnails.php?album=5
SandorSpruit: http://www.cs.uu.nl/people/sandor/photography.html
Add your own!