bgs allows you to tailor the appearance of the background ("root") window on a workstation display running X. It uses imlib2 for image rendering and rotates the images automatically. It is designed for dynamic Xinerama/Xrandr setups such as those used with notebooks, but it works well in any setup.
qtrayvolman handles hot-pluggable devices and removable media that are added to or removed from the system. It displays a nice icon in the system tray for each volume. It uses D-BUS and HAL to listen for new devices. It provides functionality for mounting and unmounting and runs pcmanfm for a given volume.
Sunscape is a screen saver and locker for PocketPC mobile devices. It is similar to the iPhone slide to unlock feature, but targets the Windows Mobile system. It provides an interface that displays configurable information about the handheld device. The graphics used are completely replaceable, allowing users to build their preferred custom interface. The main goals are to keep Sunscape completely configurable to the user as well as maintaining a very low memory footprint.
KDE3TO4 is a wizard implemented as a set of modular bash scripts to help users migrating from KDE3 to KDE4 by easily migrating settings for various applications from their old KDE3 settings directory to their new KDE4 settings directory. It requires that you keep the two directories in separate locations. The modular design makes it easy for anybody to add support for any application. On average, the amount of work for a given application is very little and the wizard takes care of integrating it into the overall process easily.
Tin Hat is a Linux distribution derived from hardened Gentoo. It aims to provide a very secure, stable, and fast desktop environment that lives purely in RAM. Tin Hat boots from CD, or optionally USB pen drive, but it is not a LiveCD in that it does not mount any file system from the boot device. Rather, Tin Hat employs a massive squashfs image which expands into tmpfs upon booting. This makes for long boot times, but remarkable speeds during human-computer interaction.