Due to many people is having a hard time making auto changing wallpapers in GNU/Linux specifically in Ubuntu here is a very very simple python script that generates a XML file that can be used as wallpaper.
A system for displaying very large sets of montaged images. The system includes a python wrapper around imagemagick generating image tiles, aa applet for viewing the tile sets, and a simple image server for use instead of Apache.
bitHull is a Simple unstructured data store-and-share mechanism. It is part experimental graph-based task/note/idea management system and part data aggregator.