A while ago I wrote an article called 13 Terminal Emulators for Linux, where I briefly reviewed all those popular shell-like applications and a few flavours of xterm or rxvt. In this article I will talk about Yakuake, a powerful terminal application for Linux, and also the KDE counterpart of Tilda in GNOME.
Yakuake running in Kubuntu 9.04
Yakuake is a Quake-like terminal, which means it behaves just like any console in Quake or usual first-person shooter games. It supports global keybindings and can be invoked with F12 and hided with the same keyboard shortcut when you finished your job with it. This way it will run in background but it won't eat your taskbar or system tray space.