This package includes various tools for developing and building Android applications, e.g.

Provides transparent encryption to all protocols supported by Pidgin. Can be activated on a per user basis or even automatically detected. Uses a private/public key system based on Mozilla's NSS.

This is a window manager for X. It is similar in many respects to such popular packages as Window Maker, Enlightenment, and FVWM2. You might be interested in this package if you are tired of window managers that are a heavy drain on your system resources, but you still want an attractive and modern-looking interface.

Curtain is a tool that shows a movable and resizable curtain on the desktop. This is especially useful when making presentations to hide and unhide things.