KLatexFormula is an easy-to-use graphical application for generating images (that you can drag and drop, copy and paste or save to disk) from LaTeX equations.
A cross-platform aplication to explore online free maps (OpenStreetMap). Build with python and pygame, full immersive environnement. Actually only source code, require pygame.
JJFMapper is a cartography program for PHP. Serves maps realtime and/or saves them to disk. Can read ESRI Shapefiles and GPX files. It streams, saves, or returns an image via the GD library. It is controlled by an easy to learn XML config document.
Research Project Helper is designed to help you write a research project by managing your sources, quotes and notes. It is written in Java and uses compressed XML for storage so both application and data are portable and will run from a floppy disk.