Ich kann nicht sagern, ob dieses Programm etwas taugt, aber das Versprechen ist hoch:

“TNTlite is a FREE geospatial analysis system providing a complete fully featured GIS, RDBMS, and automated image processing system with CAD, TIN, surface modeling, map layout and innovative data publishing tools. All this capability is available in a single integrated system with an identical interface, functionality, and geodata structure for use on Mac OS X, Windows, Sun Solaris, and popular Linux platforms. The interface, database text content, messages, map production, and all other internal aspects of TNTmips have been localized for use in 27 languages including Japanese, Chinese, Arabic, Turkish. Thai, German, Spanish, French and others. The professional version of the TNTmips is in use in over 120 nations while this FREE TNTlite version (restricted in project size) is used in almost every nation for educational, self learning, and small projects (e.g., archaeological sites, neighborhood planning, and precision farming). The product includes 80 free tutorial and application booklets with step-by-step lessons.”

Die erwähnte Größeneinschränkung der Projekte sieht laut Hersteller (MicroImages) so aus:

Project Files: No limit on size of .rvc files. No limit on number of objects in a file.
Rasters: 314,368 totals cells, maximum dimension of 1024.
Examples: 1024 x 307, 614 x 512, 307 x 1024.
Vectors: 500 polygons, 1500 lines, 1500 points, 1500 labels. (no limit on nodes)
CADs: 500 elements, 5 blocks
TINs: 1500 nodes
Databases: 1500 records

Wer mehr will, kommt um 6000 Dollar für die Lizenz nicht herum. Aber trotzdem interessantes Angebot.
Hier geht es zur Download-Auswahl für alle Rechner.