Hmm it's close to pointless without being able to switch to it easily. I don't understand why it's difficult?
Becasue this feature is rarely used by normal user so the minibuffer toolbar should not be shown by default. Then, M-x will fail if it can not find minibuffer. I propose that power users turn on (view->toolbar) and set focus to (click) minibuffer manually and remove M-X shortcut. Bo
