From GISWiki

Thuban is an Interactive Geographic Data Viewer with the following features:

• Vector Data Support: Shapefile, PostGIS Layer
• Raster Data Support: GeoTIFF Layer
• Comfortable Map Navigation
• Object Identification and Annotation
• Legend Editor and Classification
• Table Queries and Joins
• Projection Support
• Printing and Vector Export
• API for Add-Ons (Extensions)
• Multi-Language Support: English, French, German, Hungarian, Italian, Russian and Spanish
• User Manual (English)

Thuban is extensible and multi-platform (GNU/Linux, Windows, ...). It is Free Software under the GNU General Public License (GNU GPL).

Homepage

• http://thuban.intevation.org/