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.
Kolab is a groupware system that provides a comprehensive and flexible solution for workgroups. Email, contacts, and group calendars can be managed via the Web, Windows/Outlook, and Linux/KDE. It supports offline synchronization and full seamless support of mixed client environments because the Kolab-XML storage format is fully open and avoids MAPI/TNEF.
GNU xorriso creates, loads, manipulates, and writes ISO 9660 filesystem images with Rock Ridge extensions. Files can be copied in and out. The session results get written to optical media or to filesystem objects. Rather than needing external tools for ISO 9660 production and CD/DVD/BD burning, it is a static compilation of libburnia-project.org. Thus GNU xorriso depends only on fundamental operating system facilities.
Lbzip2 is a parallel, SMP-based, bzip2-compatible compression utility, with a commandline resembling that of the original bzip2. It is usable both on its own and as a filter passed to GNU tar with the "--use-compress-program" option. It uses Gnulib, and its building and testing process is managed by the GNU build system. Starting with release 2.0, lbzip2 is independent of libbz2 and features yambi, an independent BWT compression stack with improved speed and robustness.
GetData is a library that provides an API to interface with dirfile databases. The dirfile database format is designed to provide a fast, scalable format for storing and reading binary, synchronously-sampled, time-ordered data. GetData was originally written for the BOOMERanG and BLAST experiments as a data format suitable for use for both quick-look and data reduction. It is now used by many other cosmological and astrophysical experiments including ACT, Planck, Spider, Keck, as well as other projects.
RSound is a simplistic and lightweight framework for networked TCP/IP audio. It is designed to be very simple to implement, and to work well with music and video players. A librsound is supplied. It is not designed for low latency audio (games), and lets the sound backend take care of sound mixing. It supports POSIX-compliant systems (including cygwin). It includes audio output support for ALSA, OSS, libao, and PortAudio.
openmamba is a fully featured GNU/Linux distribution for desktops, notebooks, netbooks, and servers. It runs on computers based on the 32-bit Intel x86 architecture, or on 64-bit AMD processors in 32-bit mode. openmamba comes with both free and closed source drivers for the most frequently used video cards. It supports compiz out of the box. It has preinstalled multimedia codecs, and can install the most frequently used closed source applications for GNU/Linux (such as Flash Player or Skype) very easily.
hsh is a command-line driven user interface to your system with a full-screen curses interface instead of the scrolling terminal style output of traditional shells. The main purpose of hsh compared to a traditional shell is to make job output easier to work with. Each job's output is viewed and manipulated independently. This means, among other things, that you can incrementally create pipelines, and that a rampant process can't trash all the output of your session. Its syntax is designed for human use, not a programming language. It has a dynamic configurable interface, making useful information accessible.