Looks a little bit more than Notepad. Wish you luck to make something like GEdit or Geany
Well, that's the current state. If you see readme.txt you can see the final goal. It's even far better than GEdit, not sure about Geany (I used it once, and don't like the interface).
I've fixed some bugs and (really) added all available highlighters (I forgot to add them to the drop down menu), maybe I'll push it tomorrow.
I'm looking for a way to embed real console (cmd on Win, and xterm / whatever on Lin, have no idea on Mac since I don't have this), or do you think it's better for users to choose terminal that they like and the application only serve a wrapper over it?