Using free and open source software including Survey2GIS and gvSIG CE in archaeological excavation activities and heritage conservation has been a well regarded topic at the special forum "Archäologie und GIS".
The Open Source Day at the Expo Forum on Friday yielded lively and fruitful discussions among FOSSGIS experts from all projects and users of all stripes.
Still, future efforts have to be made in disseminating the benefits of FOSSGIS in general besides promoting individual projects. The best place to do so is next year's co-conference of FOSSGIS and AGIT in Salzburg. See you there!