WordPress Language Translator Plugin

Global Translator is a free and open source WordPress Plugin which is able to automatically translate your blog in 48 different languages. it has the ability to provide the translations by using Google Translation Engine, Babel Fish, Promt, FreeTranslations.com

Languages:
Italian, Korean, Chinese (Simplified & Traditional), Portuguese, English, German, French, Spanish, Japanese, Arabic, Russian, Greek, Dutch, Bulgarian, Czech, Croatian, Danish, Finnish, Hindi, Polish, Romanian, Swedish, Norwegian, Catalan, Filipino, Hebrew, Indonesian, Latvian, Lithuanian, Serbian, Slovak, Slovenian, Ukrainian, Vietnamese, Albanian, Estonian, Galician, Maltese, Thai, Turkish, Hungarian, Belarus,Irish, Icelandic, Macedonian, Malay, Persian.
The number of available translations will depend on your blog language and the translation engine you will chose to use.

You can get Global Translator from here