About the osgGIS Project
The osgGIS library is licensed under the LGPL.
Basically this means you can use it in any product, commercial or otherwise, without fees and without having to open source any of your application code. If you make changes to the osgGIS library itself, you must contribute those changes back to the open source project.
Glenn Waldron of Pelican Mapping is the primary maintainer of osgGIS. Pelican Mapping is a software services company in the Washington, DC area that specializes in map production, GIS, 3D visualization, terrain database production, and geospatial technologies.