A cross-platform editor with a well-designed and consistent look and feel. It also has a class browser, currently only for C++, and keeps the class/function display updated.
file-synchronization tool for Unix and Windows. It allows two replicas of a collection of files and directories to be stored on different hosts (or different disks on the same host), modified separately, and then brought up to date.
a pure Java implementation of the Ruby interpreter is tightly integrated with Java to allow both to script any Java class and to embed the interpreter into any Java application.
a 3D simulation environment designed for the simulation of decentralized systems and artificial life. While the concept is similar to existing packages such as Swarm and StarLogo, the implementation, which simulates both continuous time and continuous 3D
port of the X Window System server to Windows. It shares the same source code base as Cygwin/X, but does not depend on the Cygwin environment or cygwin1.dll. Xming is a fully featured X11 server for Windows that is very simple to install and use.
mp3 stream recorder (unix / win32 / winamp plugin) using the title+artist as filename (+ idv3 tag) and while ripping, it broadcasts the stream locally so you can listen to it simultaneously.
an OCR (Optical Character Recognition) program. It converts scanned images of text back to text files. GOCR can be used with different front-ends, which makes it very easy to port to different OSes and architectures.
a 2D fighting game in the same style as Double Dragon and TMNT. Paintown is very extensible and comes with editors to help design new levels and animations.
The go-oo version of OpenOffice.org is designed to give a foretaste of new features in development and includes functionality not yet accepted up-stream.
a popular version control system designed to handle very large projects with speed and efficiency; it is used mainly for various open source projects, most notably the Linux kernel.