Program that shows what you type on your Keyboard.

So I was watching a video on Youtube. Infact here it is:

http://www.youtube.com/watch?v=VXeZ0s8DXZ0

Realize how there is a black rectangle on the top right corner which shows what he types on his keyboard. Does anyone what program he is using. I pm'ed him yesterday asking about it. Dunno if Ill get an answer from him though.

System Preferences>Universal Access>Open VoiceOver utility
You should find it on there, Sorry I carnt be more detailed.
Hope he gets back to you with more info.

I did see a checkbox where it says: Display pressed keys on screen

But when I click on it nothing happens...