I would not say IDE, but code language itself. I can program without syntax highlight and autocomplete. The more precision you need the farther you are from natural language. But I really apreciate to type less. There is nothing more cryptic than compression of ideas.
utopia of one language. there are better languages at a point in time, but the next point in time the other languages acquire the new features. its the same with any language, human or not.
I didnt see html, just ruby bindings. Anyone can make easy bindinds on server but it costs flexibility on components, imagine for deep nested levels customized components and syncing.