Vym is a mind mapping program. It is useful to organize thoughts and do structure work. In addition to that it has a lot of helpful shortcuts.

KSystemLog show all logs of your system, grouped by General (Default system log, Authentication, Kernel, X.org...), and optional Services (Apache, Cups, etc, ...). It includes many features to read nicely your log files: * Colorize log lines depending on their severities * Tabbed view to allow displaying several logs at the same time * Auto display new lines logged * Detailed information for each log lines

Qt v4l2 control panel application. You can change all through the v4l2 interface exposed device controls.

Camorama is a small utility to view and save images from a webcam or any other Video4Linux device. It can apply a number of image filters and make remote captures.

Esperanza is a XMMS2 client written with C++ / Qt4 and aims to be cross-platform goodness for everyone. It has a simple interface with a single playlist and let you search the media lib or add files from other sources easily. It also presents album art.

It is based on plugins. This will make it easy to add functionality to the program, without making it hard to maintain, such as saving video as AVI/MPEG, viewing mirrored TV (scanning from right to left) or whatever you can imagine (and program).