Free and Open Source Software for Geomatics Conference FOSS4G 2010 Barcelona Latest News Don't miss 2011 conference: FOSS4G 2011 in Denver, Colorado, USA. Sept 12-16. Sep 9, 2010. Conference doors are closed. Thanks to all 869 attendees!. Sep 9, 2010. This year Sol Katz Award goes to Helena Mitasova. Aug 25, 2010. Final Program is online. July 21, 2010. JRC - European Commission is supporting FOSS