KDE Edit

KDE was originally produced because the Desktop environments available for Linux at the time were all expensive proprietery software. At the time KDE was under a Dual License that many considered was not true Free software. It is now licensed under the GPL.

Gnome Edit

Gnome came out of the Free Software communities desire to have a truly open source desktop environment. It was based on the GTK widgets that were developed for The Gimp project.

Gnome Software Edit