KDing is a KDE frontend for Ding, a dictionary lookup program. It sits in KDE's system tray and can translate the current clipboard content. Users can also enter single words or phrases for translation. It is intended to be used for translating between German and English, but can be used with every language for which a word list is available for Ding.
Qassir is a graphical frontend to manage encrypted folders. At the moment, it only supports mounting and unmounting folders encrypted with EncFS. Future releases will provide access to all of EncFS's functionality, i.e. creation of encrypted folders, changing the password for a folder, etc.
rsync-mirror is used to backup local directories to another location on the local machine or to a remote machine. As the name suggests, it uses rsync for data transfer so it should be pretty efficient. It does not support any nifty backup features like incremental backups; all it does is mirror a directory to another location. To ease the task of creating backups, rsync-mirror takes care of managing the destination site of the backup. In case the target path needs to be mounted, rsync-mirror does so before backup and unmounts it afterwards.
BinBackup is a tool intended to efficiently back up a directory to a set of size-limited media like CD-Rs or DVD-Rs. It's goal is to distribute the contents of a directory to a set of media while using the space available on these media as best as possible, minimizing the number of media required for a backup. To do this, BinBackup uses a bin packing algorithm to decide how to partition the contents of a directory and where to put them.