If the site's policy is to show all available information in any language to the user, but likes to prefer localized pages if available until now no policy suits best.
An option in the settings menu allowing the user to choose to display all language material, but only showing the current one if multiple language versions exist, would give a solution.
Comments
Comment #1
Sepulman commentedperhaps this can help;
http://drupal.org/node/147944
Comment #2
chrislb commentedThanks for the link
Comment #3
jose reyero commentedNo plans for more features besides the one mentioned in that link