We are happy to announce availability of the AdWords API documentation for v201109 release in 9 languages in addition to English. In time for your upcoming migration with deadline on February 29, 2012, we have released the latest documentation in Chinese, French, Japanese, German, Korean, Portuguese, Russian, and Spanish. The drop-down menu at the top right corner of the documentation can be used to change the language.
If you have any questions, suggestions or requests for improving docs please post on the forum.