KeyCue (7.5) Mac (OS X)

Official Website
gossip, n.: Hearing something you like about someone you don't. -- Earl Wilson
KeyCue lets you view available Command key shortcuts.Simply press and hold the Command key to view a list of all available keyboard shortcuts, making it easy to learn and remember those time-saving keystrokes.

- See. View available keyboard shortcuts based on application by pressing the Command key.
- Do. Simply type out the desired shortcut upon finding the appropriate action.
- Learn. Develop into an efficient power user by remembering repeated shortcuts or discovering previously unknown actions.

Version 7.5

Requirements
OS X 10.6 or later



Screenshot