Edo is a cross platform utilty application. It aims to replace a lot of small tools you have to use daily, like a network enabled notepad, RSS reader, audio player, IM client, and others.
Ctrlr controls MIDI based musical (or other) devices. There are surfaces built for specific devices to give a nice look and feel.
A portable, fast, light, and extensible IRC client.
Software to create and manage archives using Biblatex structure and rules.