If you use Gmail in Chinese (Simplified or Traditional), Danish, Dutch, UK English, Finnish, French, German, Italian, Japanese, Korean, Polish, Portuguese (Brazil or Portugal), Russian, Spanish, or Swedish you can now access a richer Gmail experience for your iPhone that was previously only available in US English.
This version of Gmail for iPhone also includes performance and reliability enhancements including faster loading and better support for reading your email in both portrait and landscape modes. These improvements have also been rolled out in US English, as well as for Google Apps email users.