Citrus is a library for converting numbers with units into numbers with other units. It accomplishes this by performing dimensional analysis on the units. This allows input and output to be expressed in terms of many different units simultaneously, combined via multiplication, division, and exponentiation.
pingx is utility that uses the XNoOp(3x) call to see how fast your connection to your X server is. Wonder whether your X performance is slower in a SSH tunnel? pingx can give you hard numbers so you can find out. It has an option to print out some details about the X server as well. It's also useful to see if a destination X server is up so you can fire up x2x or similar applications intelligently.
xP provides an intuitive, high quality, graphical (X11) user interface to the University of Washington's PINE Messaging System. xP aims to provide an interface that is welcoming and easy to use for the new user, while still retaining the look, feel and key commands of PINE for the experienced user.
The Linux Driver and API for Datel PC-462 project aims to produce a Linux driver and API for the Datel PC-462 Data Acquisition Card/Power Supply. From correspondence with Datel, there is no other Linux driver/API for this board. This software will allow developers and engineers to write test software that runs on Linux and incorporates the Datel hardware.
Playlist Warlock is a text-based frontend for mpg123 written in Perl. It is intended to provide users with the playlist browsing and song selection of a GUI MP3 player from any terminal. It provides a combination of Winamp/XMMS, vi/less, and Unix prompt-style commands for creating, editing, sorting, and navigating MP3 playlists. Using mpg123 as a backend, PLWarlock allows the user to easily browse playlists and play MP3s. It supports contiguous and random play, simple jump-to-song syntax, sorting by filename/path+filename, and all the other commands you've come to expect from a good MP3 player.