I have heard people say Emacs is an OS, just needs a decent editor. To me it is a textual interface, or a text based toolkit very much similar to Gtk/Cocoa/Qt.

I have heard people say Emacs is an OS, just needs a decent editor. To me it is a textual interface, or a text based toolkit very much similar to Gtk/Cocoa/Qt. It provides you with an environment on which you can build upon with Lisp.