Ubuntu shortcuts shortcut

The screenshot below was taken on the beta-1 version of Ubuntu 13.04, but this isn't a new feature.

Holding down the Super-key (a.k.a. the Windows key - with the MS logo on it) will show the Ubuntu Shortcuts (a.k.a. Keyboard Shortcuts), what can be very useful.

(click to enlarge)

Of course, one can always search for system shortcuts on the Internet, but it is some how handy to have it all there right in front of you in a click of a button.