On October 22nd, Windows 7 will be available in the following 14 languages: English, Spanish, Japanese, German, French, Italian, Dutch, Russian, Polish, Brazilian Portuguese, Korean, Simplified Chinese, Traditional Chinese and Chinese (Hong Kong).

Then on October 31st, the remaining 21 languages will become available: Turkish, Czech, Portuguese, Hungarian, Swedish, Danish, Norwegian, Finnish, Greek, Ukrainian, Romanian, Arabic, Lithuanian, Bulgarian, Estonian, Slovenian, Hebrew, Thai, Croatian, Serbian Latin, and Latvian.

Link della fonte UFFICIALE: http://windowsteamblog.com/blogs/windows7/archive/2009/06/25/announcing-the-windows-7-upgrade-option-program-amp-windows-7-pricing-bring-on-ga.aspx