xinput-calibrator is a tool to calibrate touchscreens under X.Org. Its features include: - work for any Xorg driver (use Xinput to get axis valuators); - output the calibration as Xorg.conf, HAL policy and udev rule; - support advanced driver options, such as Evdev's dynamic calibration; - have a very intuitive GUI (normal X client);

xdm manages a collection of X servers, which may be on the local host or remote machines. It provides services similar to those provided by init, getty, and login on character-based terminals: prompting for login name and password, authenticating the user, and running a session. xdm supports XDMCP (X Display Manager Control Protocol) and can also be used to run a chooser process which presents the user with a menu of possible hosts that offer XDMCP display management.

Twinkle is a soft-phone for making telephone calls over an IP network using the SIP protocol. You can use it for direct IP phone to IP phone communication or in a network using a SIP proxy to route your calls. Notable features include multiple active identities, call transfer, call rejection, 2 simultaneous calls and 3-way conference calls.

StretchPlayer will play back an audio file and allow you to time stretch (without affecting pitch) and/or pitch shift (without affecting the time) the audio, even while you are listening to it.

Gpredict is a real time satellite tracking and orbit prediction program for the Linux desktop. It uses the SGP4/SDP4 propagation algorithms together with NORAD two-line element sets (TLE).