Last modified: 2012-08-20 08:18:51 UTC
The api should be modified to lookups in the ISO3166 extension when browsing the admin_tree. You probably want to return adm0-4 with the code and a different variable containing the localized name.
Done: r863-r864 + https://github.com/awjrichards/WLM-ISO-3166-2
I think you wanted to update https://bugzilla.wikimedia.org/show_bug.cgi?id=38385 . This bug should be closed when http://toolserver.org/~erfgoed/api/api.php?action=adminlevels&format=json&admtree=nl starts returning the content
Well, http://wlm.wikimedia.org/api/api.php?action=adminlevels&format=xmlfm&admtree=nl returns it;)