Gmail now supports Arabic, Bulgarian, Catalan, Croatian, Czech, Danish, Dutch, Estonian, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Icelandic, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Malay, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tagalog, Thai, Traditional Chinese, Turkish, UK English, US English, Ukrainian and Vietnamese.

Editions impacted:
Standard, Premier, Education and Partner Editions

Languages impacted:
Malay

How to access what's new:
Sign in to Gmail, click 'Settings', and select the interface language you prefer.

For more information:
http://www.google.com/a/help/intl/en/users/gmail.html