Software that does not qualify for the overview table

name
free for download
open source
Desktop GIS
Forestry GIS
yes
no
yes
Spatial Commander
yes
no
yes
TNT Lite
yes
no
yes
TatukGIS Viewer
yes
no
no, Viewer
ArcExplorer
yes
no
no, Viewer
Google Earth
yes
no
no, Viewer
Cadcorp Map Browser
yes
no
no, Viewer
SavGIS
yes
no
yes
Thuban
yes
yes
no, Viewer
mezoGIS
yes
yes
no, Viewer
OrbisGIS
yes
yes
soon (under development)
MicroDEM
yes
no
yes
Kashmir 3D
yes
???
no, Rendering
Spring GIS
yes
no
yes
AvisMap Viewer
yes
no
no, Viewer
SIGIS
(yes)
no
yes
============
====
====
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FMaps
yes
yes
dev. frozen
Kalypso
yes
yes
dev. frozen
============
====
====
=====
MapGuide OpenSource
yes
yes
no
Map Server (UMN)
yes
yes
no
GeoServer
yes
yes
no
deegree
yes
yes
no


For people from JAPAN, Yasuharu Yamada sent me these list of free software:
Chizu-de-miru GIS, MANDARA, Kashimir3D, aKantan-map, STIMS, e-G Tools,
... I would really like to know how advanced Japanese GIS are :o)