The Google Chrome team has released Chrome v 11.0.696.57 to the "Stable Channel" for all platforms (Windows, Mac, Linux). Apart from the usual bug, security and performance fixes the brand new Chrome 11 build features speech input through HTML using which users can translate using text-to-speech into other languages with Google Translate.
Official feature description :
"If you’re translating from English, just click on the microphone on the bottom right of the input box, speak your text, and choose the language you want to translate to. In fact, you can even click on the “Listen” feature to hear the translated words spoken back to you!"