I agree with the sentiment, the interface seems to be aimed at looking nice more than being usable, which would make it so much easier to use as a reference. Bu

I agree with the sentiment, the interface seems to be aimed at looking nice more than being usable, which would make it so much easier to use as a reference. But if you follow the check-list in the "book", it is not actually a web app itself. It's aimed at someone reading its content, not really using it as an application. So I guess they kind of found a loophole for themselves. I do think it's really pretty though.