Wiki2Beamer - what a great tool for presentations. Previously I had to write 100% LaTeX code for Beamer presentations. With Wiki2Beamer a major part of the LaTeX code now can be done in an easy-to-write wiki-like syntax instead. Wiki2Beamer pre-processes your wiki file and produces LaTeX code from it. Simple and still powerful. Have a look at the syntax description and examples at the Wiki2Beamer page. Wiki2Beamer is written in Python by the way. License is GPL.