Hi,
just a note: Call for participation in program planning:
33. IGC - International Geological Congress - now with focus on Geoscience.
"The Scientific Committee invites all Geo-scientists to participate in
planning the
programme of the 33rd IGC Congress."
http://www.33igc.org/
Around 8000 (!) people are expected. Obviously OSGeo will be
present as well 
Deadline for program suggestions is apparently end of Aug 2006 (!).
I have added the event to the the Event Timetable template
http://wiki.osgeo.org/index.php?title=Template:Event_Timetable&redirect=no
Cheers
Markus