It's interesting. I often thought it would be nice to have a browser that allowed users to edit pages. For instance, a page written years ago with outdated information could be edited to hide the old writing and show the new. Of course, there would have to be a seamless version control system allowing the user to scrollbar through a timeline of the changes. I suppose it's called Wikipedia. But you know - a browser that made every page a wikipedia style page, with a horizontal scroll bar that showed you the changes.

It has usage rights implications of course. "Wait a minute!" an author might say. "How come I said X and everybody that browses to my page using the new-fangled browser sees Y?"

Looks nice. I've ended up integrating gridmanager.js (shameless plug, I wrote it) into all my CMSes these days. It's more of a layout manager + ckeditor though. http://neokoenig.github.io/...
Plus, it has kittehs.

I don't mean this as a criticism, but that UI looks as complex as an airplane cockpit. :)

lol, fair enough :) it is rather useful though!