I have a dream of such system http://sergeykish.com/live-pages http://sergeykish.com/live-pages - edit in browser, simple code, inspectable with its own control

I have a dream of such system http://sergeykish.com/live-pages http://sergeykish.com/live-pages - edit in browser, simple code, inspectable with its own controls. It's fun, it's not enterprisy, it's unpredictable and sadly not polished (and not published)