gRio500 is a Gnome/GTK program that lets you interface with the Rio500 MP3 player by Diamond/S3/SonicBlue. You can currently create/delete folders, add/delete songs, format memory, rename folders/songs, automatically downmix/resample MP3s during transfer, and preview MP3s (play/stop controls). You can interface with both internal and external memory (Smartmedia).
Gemu is a Gnome application designed to configure sound cards based on the EMU10K1 platform from Creative Labs. Gemu is capable of adding, viewing and deleting audio routes, turning on Live Drive IR, turning on the 12db boost to the front/headphone jacks on Live cards, setting the S/PDIF frequency on Audigy cards, setting the recording source, turning on digital passthrough mode, setting to the analog or digital mode of the dual-mode jack of 5.1 cards, adding and seeing patches for sources and destinations, and controlling volume on a per-route basis or by source or destination.
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.
GFreqlet is a GNOME applet for Linux that not only monitors CPU frequency scaling, but also allows the end user to change the frequency or governor with just a click. It automatically detects which frequencies and governors your processor supports, so there is no configuration required. The applet itself is not run as root, nor required to modify to run with root ownership, but password prompts with gksudo if a superuser action is required. GFreqlet is very straightforward and minimal, and just does what it's supposed to.