Show HN: Realtime collaborative ebook publishing

Hello HN,

We released Papyrus here on HN a few month back.One of the most requested features was to be able to collaboratively edit books. We have tried to provide a collaborative editing environment where multiple authors can simultaneously edit an ebook(all made possible due to http://sharejs.org/) Your feedback would be very helpful.

the app itself is a great idea! but don't know if collaborative editing is something big!