Here are some projects I'm currently contributing to
A board game I'm developing with Laurent Peuch. It's written in python using pygame (the python bindings for the sdl). It also use the Telepathy framework newest technology, the dbus-tubes to provide network support.
It's based on the "Halebarde et Gonfanon" board game created by Eric Forgeot.
Vim-fr.org is a community I co-founded to provide help and information on Vim for the French speaking community. It currently consist of a wiki-based website : http://www.vim-fr.org, which provide informations and an IRC channel #vim-fr on the Freenode network, where people can provides and get help.
The current engine for the website is dokuwiki.
Webboard is a panel applet for Gnome which allows you to share your code or texts on the internet by sending it to a public pastebin server (currently paste.debian.net).
Webboard was originally created by Sebastian Heinlein and I'm the current maintainer. It's developed in python using pygtk and XML-RPC.
Telepathy-butterfly is the MSN backend for the Telepathy framework. It's written in python. I recently started contributing on it.