Genius is an arbitrary precision integer and multiple precision floating point calculator. It includes its own programming language similar in some aspects to C, bc, or Pascal. It can deal with rational numbers and complex numbers. It has matrix support as well. It uses the gmp library so it is very fast for calculations of large numbers. It has a command line and a GNOME interface. The GNOME interface supports plotting functions and 3D surfaces.
gentoo is a file manager that uses the two-pane concept and is somewhat inspired by DOpus. It strives to be very configurable and lets you do all of the configuration from a GUI within the program itself. Filesystem access is done through the GIO virtual file system layer whenever possible. Using advanced file typing and styling systems, gentoo determines how to display files in its listings, and also how to act on them. The package includes a set of over 120 unique handcrafted icons for many different types of files.
George is a file reorganizer and CD creator, especially suited for the creation of MP3 archive CD's. It will take files from all around your system and/or network, organize them into somewhat lexicographically sorted CD-sized chunks and provide means to create CDs using external pre-mastering and mastering software. George is written in perl, using the gnome-perl and Glade-perl modules (amongst others). There is also a command-line version of George which does not need any special (non-standard) Perl modules. To actually create CDs with George, you also need recent versions of cdrecord and mkisofs.