Not a new idea - but seems like a nice design; shame you don't have a video showing it in action, and I don't see why we need to sign up to try it - maybe move the sign up to later on?

What's wrong with text files + text editor + dropbox?

I'm tired of seeing all these "distraction free" writing tools. People have been writing using MS Word for years without any problem.

Don't try to find excuses for laziness by blaming the "writing tools", and just get to your writing.

All you really need is a text editor, most of them are already much better than you'd need them to be.

What's their business model? Why would I type my thoughts there instead of, say, "google docs." Or putting text files in a dropbox.

I like the idea of quiet and uncluttered. But it's hard to trust my writing to some new web app with to viable way of monetizing it.