Festival offers a full text to speech system with various APIs, as well an environment for development and research of speech synthesis techniques. It includes a Scheme-based command interpreter.

K3b provides a comfortable user interface to perform most CD/DVD burning tasks. While the experienced user can take influence in all steps of the burning process the beginner may find comfort in the automatic settings and the reasonable k3b defaults which allow a quick start.

Hierarchy Viewer allows you to debug and optimize your user interface. It provides a visual representation of the layout's View hierarchy (the Layout View) and a magnified inspector of the display (the Pixel Perfect View).

TiLP2 is a Texas Instruments hand-helds <-> PC communication program for Linux. It is able to use any type of link cable (Gray/Black/Silver/Direct Link) with any calculator. See http://lpg.ticalc.org/.

BitTorrent is a tool for distributing files. It's extremely easy to use - downloads are started by clicking on hyperlinks. Whenever more than one person is downloading at once they send pieces of the file(s) to each other, thus relieving the central server's bandwidth burden. Even with many simultaneous downloads, the upload burden on the central server remains quite small, since each new downloader introduces new upload capacity.