How to display the pressed keys on Ubuntu (Linux)

During the make of my latest video i faced a problem of displaying the keys i'm typing. I found an excellent tool for the job. There is a .deb to install. Here is a short feature list:

http://code.google.com/p/key-mon/

Features:

• The window and buttons are scalable to any size.
• Different keyboard themes/styles supported, for example the Mac look.
• Can start without a window border to take up less space.
• Right click provides an application menu.
• Supports the META (aka Windows) key.
• Supports the scroll wheel.
• Supports all three mouse buttons.
• Should support multiple mouses or keyboards.
• Move the window by dragging from anywhere inside.
• Swap the left and right mouse buttons for lefties.
• Support for touch tablets.
• Emulate middle click by clicking left and right mouse buttons.
• When the dialog is smaller a different set of images are used for a better look.
• Support for foreign keyboards.
• Ability to make your own keyboard scancode maps, for when the defaults don't work.
• Visible mouse click. Briefly show's a circle where you clicked.
• Option to show only key combinations

Please comment if you know another tool for the job!

Thanks,

Dave