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Noowit has also a similar editor. Create an account an go to http://www.noowit.com/writer

Wow, Noowit is amazing. Thanks for the link.

Edit: I think it is a little early for wider use. But that's ok, looks like it will turn out to be good.

Thanks Jeswin, we're working hard on constantly improving Noowit. Stay tuned and you will be pleasantly surprised.

I am working on an open source project in the same space. "Screenshot": http://flipper.foraproject.org