wnotes

WNotes are flexible, convenient notes for Linux and UNIX desktops. They are self contained and can work with shells like bash and zsh, and any other scripting language, so you can write versatile, visual text applications with them, or simply pop up a note whenever you need one.
WNotes are written using GNU C++ and use Xlib for Linux and UNIX, so they should be easy to install on any system that supports GCC and the X Window System.