"Guake is a top-down terminal for Gnome (in the style of Yakuake for KDE, Tilda or the terminal used in Quake)."

"Tasque is a simple task management app (TODO list) for the Linux Desktop."

GNOME launcher software (similar to QuickSilver or LaunchBar on OS X)

Essentially Quicksilver for GNOME Linux

Eddie, formally of BeOS fame, is now a "1.0" for Mac OS X and there's a beta for GNOME Linux too.

"Gobby is a free collaborative editor supporting multiple documents in one session and a multi-user chat. It runs on Microsoft Windows, Mac OS X, Linux and other Unix-like platforms."

"Hipo is an application that allows you to manage the data of your iPod, Hipo is written in C# using Mono, GTK#, the cute ipod-sharp library and for tag editing it uses taglib-sharp."

"Avant Window Navgator (Awn) is a dock-like bar which sits at the bottom of the screen (in all its composited-goodness) tracking open windows."

Nat Friedman's Dashboard concept is seeing new life now that the Beagle desktop search engine is more or less stabilized.

Big Board is an experimental panel for the GNOME Desktop. Currently designed only for the Linux Client, big board is not just a new panel. While big board will likely replace parts of the top / bottom panel elements of the current desktop, it's designed t

"Dock" any application to your Linux window manager's system tray

Recipe management software for GNOME (runs on Windows too!)

Didn't know GTK could do that... huh. Probably not practical on Linux though (with the various GUI toolkits that don't respect GTK, like wx, qt, etc.)

Open specific notes using dbus using a command line script (that can be tied to keyboard shortcuts of course)

Simple time tracking in GNOME. Wish I had found this earlier.

Lightweight, minimalistic GNOME/GTK text editor

GNOME software for manager references, bibliographies, etc

Really simple interface for interacting with torrents - doesn't support things like queuing for example but I generally don't need advanced torrent features.

Collection of plugins for GEdit

Similar to VoodooPad for Mac OS X, it also has a surprising level of integration with other applications - like Evolution.

Steven Garrity is tackling a sound usability issue in Gnome - There aren't enough Stevens in this world.