Google Books to start publishing in Spanish?

That's the question presented by this article (in French), which says that Google Books plans to begin publishing in its second language after English, and speculates that it will be Spanish. Apparently Mark Nelson for Google was asked at a book fair in Buenos Aires whether Google planned to launch a Spanish version, to which he said that they would launch it in another language soon, but without saying which language it would be, and that his presence at the book fair was an indication that Spanish would be next.

On the other hand, in terms of copyright-free books online I believe French still far surpasses Spanish, as one can see in places like Wikisource, so I wouldn't be surprised if that was the next language instead.