Qt is a comprehensive, object-oriented development framework that enables development of high-performance, cross-platform rich-client and server-side applications. When you implement a program with Qt, you can run it on the X Window System (Unix/X11), Apple Mac OS X, and Microsoft Windows NT/9x/2000/XP by simply compiling the source code for the platform you want. Qt is the basis for the KDE desktop environment, and is also used in numerous commercial applications such as Google Earth, Skype for Linux, and Adobe Photoshop Elements.
Quadra is an addictive puzzle game and competitive, action-packed multiplayer game all-in-one. It features incredibly smooth gameplay, recursive line clearing allowing blocks to combine in violent chain reactions, block shadow to help you drop blocks with precision 10 levels with colorful background images and matching sound effects, integrated CD music player, worldwide highscore table with recordings of your best performances, fully configurable multiplayer mode with team play, keep an eye on your opponents with the remote watch windows, chat window, powerful and flexible user interface TCP/IP support for internet or LAN multiplayer games and more.
RACE (Remote Administration in distributed Computing Environments) is a library framework (and will be a set of applications) to aid the system administrator in deploying software and configuration updates to a large number of client computers. The administrator can easily treat intercommunities and respect differences between the individual computers. RACE uses RPM for package management, but it is designed to be easily extended for other package managers.
IRRToolSet is a set of policy analysis tools, written in C++. It's designed to run under UNIX, using Tcl/Tk for graphics. There are tools for generating router configuration files, displaying and checking routes, generating aggregations of networks, etc. This project was formerly known as the Routing Arbiter ToolSet (RAToolset), and was maintained by ISI.
rproxy is an extension to HTTP which allows transferring of differences between a web server and client, using an algorithm similar to rsync's. This works particularly well for dynamically-generated sites, where the pages are often similar but not the same on each visit. Transferring just the difference reduces network traffic and therefore loading time.