I created a not-hierarchical custom post type and, as default, it's sorted by date published.
I know I can reorder them by Title with
query_posts() in the archive template:
global $query_string; query_posts( $query_string . '&orderby=title&order=ASC' );
but it takes another SQL query on each archive page. There is a way to register the sort order natively, eventually to get posts sorted by title even in the admin?