Japa, is a 'perceptual' or 'psychoacoustic' audio spectrum analyser. Possible uses include spectrum monitoring while mixing or mastering, evaluation of ambient noise, and (using pink noise) equalisation of PA systems.

This is a free, cross platform multitrack audio recording and editing suite, with an innovative and easy to master user interface. It is suited for both the professional and home user, who needs a robust and solid DAW.

Plasma Desktop offers a beautiful looking desktop that takes complete advantage of modern computing technology. Through the use of visual effects and scalable graphics, the desktop experience is not only smooth but also pleasant to the eye. The looks of Plasma Desktop not only provide beauty, they are also used to support and improve your computer activities effectively, without being distracting.

Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality.

Winpdb supports debugging of threads- and curses based applications, namespace modification and embedded debugging. As a remote debugger, it uses (encrypted) network connections to connect to the debuggee (which is running on the same machine, usually).