Shotwell is a photo organizer designed for the GNOME desktop environment. It allows you to import photos from your camera, view and edit them, and share them with others.
b2rex is a tool to connect, export, and integrate Blender and realXtend. It supports importing and exporting from realXtend worlds, and aims to be a full fledged client to realXtend and OpenSim.
A workflow engine.
A GUI client for Git, Mercurial, and SVN.