An open source text editor for Smultron programmers that comes with some interesting features: Syntax highlighting and auto fill functions in different languages.
Smultron's power to see the documents is another one. Through it, you can see a document on full screen, split the editor into two parts, or see it separately. Organized by the documents project and programmable interface can be separated using tabs.
The Smultron 'command' function lets you run operations from the program's own interface. You can use this function to save parts of the code that you use most often.