I am using emacs 24.0.95 for Mac (from the emacsformacosx.com build).
I tried to do
(global-set-key (kbd "<escape>") 'keyboard-escape-quit)
as suggested in a similar (but specific) question (http://stackoverflow.com/questions/648817/how-to-bind-esc-to-keyboard-escape-quit-in-emacs) which seems to work in Win, but not on Mac, all meta-keystrokes stop working.
OSX, Linux- , , Cg -, -escape-quit. emacs : C-h k C-g, ... :
"C-g keyboard-quit, Lisp `simple.el '.
C-g.
(-)
"quit". Lisp . , , . "
, , ?
EDIT: , :
(global-set-key (kbd "<escape>") 'keyboard-quit)
C-g Escape.