Describe Key is a little plugin that allows you to easily find out
what a key or shortcut does. It is named after emacs' describe-key
It is very similar to the "Add Keyboard Shortcut" dialog from
the Keymap editor except that you can invoke it very easily
by CtrlAltK (by default, or from Tools->Describe Key...)
For 4.0 or 4.1, available from the plugin manager.
Comments are welcome!