I never imagine myself coming back to Emacs again. Under Windows, Notepad++ is just to good. I have not found anything come close to Notepad++ for Mac.
Using Emacs on Mac is really a pain, especially the MacBook. There is no Home, End, Page Up, Page Down. Even the function keys, It is such a pain to map shift or control function keys.
I guess Mac is not for techies.
However, I must say Mac OS has a very nice Apple Terminal. It runs without X11 and supports UTF 8 characters.