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.

Conky is a system monitor that can display just about anything, either on your root desktop or in its own window. Conky has many built-in objects, as well as the ability to execute external programs or scripts (either external or through built-in Lua support).

Tenace is a Bridge hand viewer and editor. Hand records are read using BBO's .lin format. The board editor allows one to easily move cards around to simulate different distributions. The double dummy solver computes optimal lines of play and par scores.