Thanks for the update, Erik.
In the last years I and other volunteers tried our best to help the Italian community to learn about and adopt the book creator, and I'd like to thank PediaPress for their services and the support they provided so far <3
Even without the final step to get printed copies of the actual book (although some of us are proud owners of them!), I've always seen value in a tool allowing readers and editors to create their very own collections of articles, especially on some "sister projects" (Wikivoyage comes to mind).
The new rendering engine looks very promising, and I would really love to see the feature exporting collections in other open formats grow as well. 
How can the communities show you their interest in the book creator? Can we do anything to help you find a new partner? Is there room for volunteers to furtherly maintain/develop the tool, maybe supported by a grant?
Thanks for your attention.

Elitre