This section of the ActivityWorkshop is intended to house a variety of software projects for free download. At the moment there's just one application here, but more is expected soon.
Prune is a java application for managing coordinate data from GPS systems. It can load data from arbitrary text-based formats (for example, any tab-separated or comma-separated file), display the data (as top-down view, altitude profile and rotatable 3d view), edit the data (for example delete points and ranges, sort waypoints, compress tracks, edit fields), and save the data (in various text-based formats). It can also export data as a Gpx file, or as Kml/Kmz for import into Google Earth, or in Pov format for import into Povray. It can even automatically correlate your photos with your GPS coordinates too.
The software here is released under the Gnu GPL, which means it's not only free, it's also Free.
Some software calls itself free just because it costs no money, but it still includes catches like limited trial editions or compulsory registration. If you don't get access to the source code and the rights to modify it to suit your needs, it's not really Free.
All software under the Gnu GPL comes with license restrictions, but these restrictions are only there to prevent people from making the software non-free. You can download Prune for free, you can make copies and give them to your friends, you can download the source code and see how it works, you can even edit the source code and make a customised version for yourself. That's free. What you can't do is stop other people getting the same benefits, so for example you can't edit the code, and sell copies without giving them access to the source code too. For precise details see the included file license.txt or read about it at gnu.org.
Obviously, if you do make changes to the software, we would love to hear about it so that we can include the improvements here.
This isn't complete software, it's just a throwing-around of ideas for a possible application. It's a timetabler, to keep track of multiple train / tram / bus / boat timetables and let you know when the next connection is. It might be useful for finding out whether to rush out of the office for the trip home or not. But it's just an idea for now.