QuickLaunch is a small launcher tool that helps you to quickly start any installed application (as long as it has an app-signature). Simply start to enter the name of an application and QuickLaunch will find all programs matching these initial letters and show them in a list.
You choose an app from that list with the CursorUp/Down keys and launch it by hitting RETURN. ESC quits QuickLaunch.
It's recommended to set a key combo to start QuickLaunch with Haiku's Shortcuts preferences.