GPicView - A Simple and Fast Image Viewer for X

Features:
    * Extremely lightweight and fast with low memory usage
    * Very suitable for default image viewer of desktop system
    * Simple and intuitive interface
    * Minimal lib dependency: Only pure GTK+ is used
    * Desktop independent: Doesn't require any specific desktop environment
    * Open source, licensed under GNU GPL


WWW: http://lxde.sourceforge.net/gpicview/