Keypress Output Plugin?

Hey, I am looking for a plugin or script, where all keypresses get print in the viewport.
Saw it for example here: http://www.youtube.com/watch?v=p2BPbvpJ6Ps&feature=player_embedded#at=35

In the left bottim corner you can see all keys pressed.

There’s this one http://blenderartists.org/forum/showthread.php?t=181703&highlight=screencast+keys+status

Thank you!