Visolate reads the gerber files describing printed circuit boards and converts them into the G-code (RS-274 code) needed to engrave the layout into a board using a CNC machine. Precise renditions of the original layout can be created as well as voronoi fillings of the original layout, shortening the toolpath.

This application allows the user to load a GPS trace, in the GPX file format, and read it in a presentable way. You are shown a few statistics, such as the duration or maximum speed. You are also shown the trace on an OpenStreetMap map, where you can scroll around and zoom.

iftop does for network usage what top(1) does for CPU usage. It listens to network traffic on a named interface and displays a table of current bandwidth usage by pairs of hosts. Handy for answering the question "Why is my Internet link so slow?".

The GNOME Session Manager is in charge of starting the core components of the GNOME desktop, and applications that should be launched at login time. It also features a way to save and restore currently running applications.

Slic3r converts digital 3D models into printing instructions (G-code) for your 3D printer. It cuts the model into horizontal slices (layers), generates toolpaths to fill them and calculates the amount of material to be extruded.

WMitime is clock dock app, which shows standard time, date. The unique feature is that it can also show Internet time with notation @TIME. See <http://www.swatch.com/> for more about Internet time.