Great job. Nice execution. I would recommend adding some type of simple tutorial walk-through after the new page is first created. It took a little while for it to sink in that this is a blank canvas and I can start typing, etc. Maybe the fact that the canvas is the same color as the background of the site, it is not easy that this is a "word doc" where I can start building. I know you probably want to keep it minimalistic, but it might help to outline the canvas so this fact is more obvious.
My first reaction: creating a website already is as easy as creating a Word doc.<p>How is this different (or how will it be different) from creating a Google Doc and sharing it with the public? Or using Google Sites for that matter?<p>(Not trying to jam you up -- genuinely interested in this and your answer.)