===Is there a GUI planned for Octave?===
Yes, and is already in development. You can download the [http://www.gnu.org/software/octave/get-involved.html Octave repository] and compile the
gui branch yourself (it seems to be stable enough for use and the 3.6.2 binaries for windows already have it). Testing is always welcomed, and patches even more. Note that despite being called Octave GUI, it is ''not'' a separate project. It is simply the ''Octave GUI'', the Octave Graphical User Interface, just like the Octave prompt, Octave interpreter, etc are not separate projects (not to be confused with the completely unrelated but similarly named, GUI Octave project).
===How come there's still no GUI for Octave?===