This post presents the drupal multilingual variables list so far:
Only core and core module module multilingual variables are included.
<?php
$conf['i18n_variables'] = array(
'site_name',
'site_footer',
'site_slogan',
'site_mission',
'anonymous',
'theme_settings',
'theme_garland_settings',
'site_frontpage',
'menu_primary_links_source',?>
