I just wanted to make you aware that in these days Wikidata has being launched, and the community is asked to propose schemas and models for Properties. 

For us, I think it would be very important to give a hand to this:

I don't understand well how Wikidata works, we're atill at the early stages, but IMHO it would be great for librarians and wikipedians to work directly on that book model. Wikidata should be interoperable with major metadata schemas, in a way or another.

Regards

Aubrey