gPhoto is a program and library framework that lets users download pictures from their digital cameras. The libgphoto2 library gives you access to hundreds of models of digital cameras on several platforms. GIT repo and Issue tracker lives at https://github.com/gphoto/ these days.
Virtual Camera is an interactive 3D application written in Java, using the Java3D API. The application allows the user to load VRML content, navigate and manipulate objects in a virtual world. A set of useful tools accompanies the application.
GOK is an on-screen keyboard. An alternative to the mouse/keyboard input system (for unix-like systems with GNOME libraries.)
IRC Channel Manager, made in Java, easy to install and configure.
YarloX is an application that allows the developers to register in organized way all the alterations made in its releases/builds. YarloX uses jasperreports, apache commons and others technologies.