GNOME 2 wallpaper changer
Selects a random background from the ~/.gnome2/backgrounds.xml file (or any other file in the same format). The chosen background is then set as the current GNOME background via gconf.
A preferences mode is also included, using the -p or --preferences option.
Version 1.1 adds a daemon mode; the daemon can be launched with -d or --daemon and shut down with -x or --exit-daemon.