http://googleresearch.blogspot.com/2010/11/voice-search-in-underrepresented.html

<<< Today [Tue 9th Nov] we’re introducing Voice Search support for Zulu and Afrikaans, as well as South African-accented English. The addition of Zulu in particular represents our first effort in building Voice Search for underrepresented languages.

We define underrepresented languages as those which, while spoken by millions, have little presence in electronic and physical media, e.g., webpages, newspapers and magazines. >>>