gpdial_applet is a GNOME panel applet that can monitor a file and rip an integer or floating point number out of a row/column in that file and display it in a dial or gauge meter. The author uses it to monitor a file in /proc that lm_sensors updates showing the CPU temperature. Using the row/column mechanism any file in /proc can easily be monitored using this applet.
Grave is an MP3 playlist editor and interface tool for the Sensory Science RaveMP MP2000 Digital Media Player, made with the GTK+ toolkit and GNOME libraries. It allows you to create and edit playlists, which are stored as text files and can be used with most (software) MP3 players (i.e. XMMS). The part interacting with the RaveMP (hardware) MP3 player can upload and download single files or complete playlists.
thinkpad-status is a GUI interface to IBM ThinkPad laptop setup. It has been tested on IBM ThinkPad Lenovo Z60m. With its simple interface, you can control and change some settings on an IBM ThinkPad laptop, such as CPU power saving and scaling setup. It also lets you check battery status, thermal status, fan speed, ThinkLight settings, and LED status. Some of these features can also be used on other laptops.
Gnome Chinese Checkers is an implementation of the the Chinese Checkers board game. It uses a client-server model. One person starts a server and all players (including the one who started the server) connect to it from their clients. Both the client and server are packaged into one application. The game supports upto three human players. Currently computer players (bots) are not supported. This game uses the Gnome libraries.
Gnome1394 allows one to access the IEEE 1394 bus (FireWire, iLink) in an easy way from Gnome. It needs the IEEE1394 kernel patch and the library for raw access to the bus. All can be found on the project's homepage. Note that at the current stage access is very limited and only simple bus transactions are possible. It doesn't do useful things at the moment, target audience are developers and people who want to see that Linux is starting to support IEEE1394.