gMGAclock is a GNOME-based overclocking utility for Matrox G400 cards. It supports multiple cards, has 5 pre-configured presets, and calculates registry values based on given clock speed and vice versa on the fly.
gNiall attempts to learn whatever language you try to teach it by breaking down the sentences and remembering the connections between words. After a while, you can build up huge dictionaries of words, and it will merrily talk rubbish at you.
Gnofin is a light-weight personal finance application for GNOME. It is designed with simplicity and functionality in mind. Features include multilevel undo and redo, cut/copy/paste, QIF and CBB import, and support for mixed local and foreign currency accounts.