Yammy (Yahoo Messenger Archive Decoder) allows you to decode and view not only yours but, also other stored YM conversations. You don't even need a password!
Virago is a multi-webcam video surveillance software for GNU/Linux systems.
Hathi, P2P client. Rewritten in C#, using mono and .net, for linux and windows platforms. Initial networking support for edonkey, with bittorrent in planning. We are looking for contributors!! Back in action after some busy days :)