The author of the biblio module is working on the 7.x-2.x.
In Drupal 6, biblio is a popular module for academics, libraries and publishers But it has its own data structure rather than reusing cck fields. So some related modules were made for extra functions like apachesolr_biblio.
In Drupal 7, fields are built in the core, and we all agree that "Biblio in Fields" is the best solution.
I also would like to add more standards support in the new release like:
I work for some projects using biblio intensively and would like to be the mentor for students who would like to join force with the community.