What I really like about OS X is that almost all text controls in system use old Unix shortcuts for moving around text (same as Emacs is using), so you might ju

What I really like about OS X is that almost all text controls in system use old Unix shortcuts for moving around text (same as Emacs is using), so you might just learn them: ⌃a, ⌃e, ⌘<, ⌘> for line/document begin/end respectively. There are more of them, you can go through Emacs tutorial to learn them.