Have no visible l10n errors upon review of the locale's screenshots (e.g., significant truncation, text overflow, encoding, etc.) besides what may have already been reported to the iOS team to correct.
Sign-offs for new locales
We will continue to work through Bugzilla for processing new locale sign-offs. The criteria for shipping these locales will be the same as the criteria mentioned above.
If you find any issues and file bugs, please CC flod and delphine to them (there's no tracking bug at the moment).