This is a list of software using GDBMS. If you plan to use GDMBS in your project you can tell us to put it in the list.
gvSIG: A Geograpic Information System. Its driver layer has a great performance and supports common formats (dxf, dgn, dwg, dbf, postGIS, MySQL spatial WFS). It's great that GDBMS can use those drivers too ;).
GDBMS gvSIG drivers: a GPL licensed project with drivers of shapefiles, dxf, ... taken from the gvSIG project.
jDWGlib: The project used by the DWG driver.
OrbisCAD: A precise gis editor.
SIF: A swing interface framework used by OrbisCAD. It's only available through the cvs.