• Open source
• Interfaces: command-line (batch and interactive), API, GUI
• Minimum OS dependencies, very portable
• Output: TTY/curses, GIF, JPG, PNG, raster, X11, XBM; extensible
• Input: Tabular D0 parser, E00, [M]WDB
• Point, vector and raster data display
• Built-in heirarchical window system
• 70+ projections; extensible
• Interrupted projection with spurs
• Interfaces with CIA World Factbook