Originally Posted by chazzek
On the Mini, the alt key on the keyboard is Command and the windows key is Option/Alt. That's because the keys are in that order on a real Mac and it would otherwise be very confusing to switch between the Mini and a Mac keyboard. I popped the keys off the keyboard and switched them. Do it carefully, because it's easy to break the little plastic tabs. I broke one, but the key still sits securely on my keyboard.
The menu key is the one to the right of the spacebar. It's also a Command key.
Why would you do that? Why don't you use the modifier keys editor in system preferences - keyboard? this way you simply remap option key as command and the other way around. pretty easy!