Drupal 7 - Programmatically create children menu items in different languages.

module.php

function sega_hero_update_7001() {
  // Load all 'Mobile' menu items in the different languages.
  $parent_menu_items = db_select('menu_links', 'l')
    ->fields('l')
    ->condition('link_title', 'Mobile')
    ->condition('menu_name', 'main-menu')
    ->execute()
    -> fetchAllAssoc('language');

  // Children menu items we're going to create.
  $new_menu_items = array(
    array(
      'title' => 'Games',
      'path' => 'games?field_tags_tid=129'
    ),
    array(
      'title' => 'Blog',
      'path' => 'http://mobile.sega.com'
    ),
  );

  // Iterating over parent items. We'll use their language and mlid.
  foreach ($parent_menu_items as $lang => $parent_menu_item) {
    // Iterating over the info for creating the new childrem items.
    foreach ($new_menu_items as $info) {
      $form_state = array(
        'values' => array(
          'link_path' => $info['path'],
          'link_title' => $info['title'],
          'menu_name' => 'main-menu',
          'plid' => $parent_menu_item['mlid'],
          'language' => $lang,
        ),
      );

      module_load_include('inc', 'menu', 'menu.admin');
      // Validate and transform the item, so it conforms with Drupal standards.
      menu_edit_item_validate(array(), $form_state);
      // Save the item to database.
      menu_link_save($form_state['values']);
    }
  }

}