No, the language itself is pre-release. The posting here is basically a first showing. The idea is to encourage convertors of course. For the author or book de

No, the language itself is pre-release. The posting here is basically a first showing. The idea is to encourage convertors of course. For the author or book designer to mark it up as a UBook, then be able to export that to anything e.g. Kindle, ePub etc. The focus at the moment is in defining the tags, then encouraging others to use it as a universal method to semantically encode books in a very simple way.