Sorry, but the iBox editor is here to stay. We will allow users to have a choice when we make it available for message composition, but since multiple users can potentially edit the iBox everyone has to use the same editor.
It really is not difficult to use if you think of it as an editing application like Microsoft Word and not as a simple text box. All the more so if you keep it simple. Meanwhile, it allows more flexibility for those who want to be more creative.