Fusenshi is a Post-it(R) like application. You can take notes on your
desktop and send them to others with it.
Documents is a document manager application designed to work with GNOME 3. It's
included in the default set of core applications since GNOME 3.2.
GTG is a personal organizer for the GNOME desktop environment,
it focuses on ease of use and flexibility, while keeping things
simple.
GNOME To Do is a small application to manage your personal tasks. It
uses GNOME technologies, and so it has complete integration with the
GNOME desktop environment.
PlayWolf is a plasma applet for KDE4 that allows you to control Amarok 2.x from
your desktop and view the song that is currently playing.
Tea Cooker is a Plasma applet for KDE4 to assist all lovers of tea in the task
of steeping tea for just the perfect length of time.
This is a small console program written in
perl, which allows you to manage notes similar
to programs like "knotes" from commandline.
An ANSI C library allowing communication with google calendar and contacts,
useful if you need to support this in a C or C++ application.
Nagaina is a notes-taking application.
Features
* Classifications of notes in categories;
* Rich text editor, with support for font, font size, font color, alignment...
* Style editor;
Preferences.app is, functionally, a clone of NeXTstep/OPENSTEP tool of
the same name. Just like the original program, it's a simple application
for setting preferences for the GNUstep system, with a friendly interface.
The program is simple, but powerful -- people can create new modules,
called "bundles", that add new things to the program that its original
developers did not think of or even intend -- that don't require
recompiling the main program. For more information on what bundles can do,
see StepWise. They are a very powerful tool.