Google voice search is available since last year. It started with iPhone and mobile phones using Google Android OS. But Google is expanding the service to other manufacturers quickly. Recently, they have added Nokia phones. However it works only Nokia S60 series models. If you have N/E series Nokia phone then you have S60 compatible phones. It seems the phone can also recognize Chinese Mandarin. The phone can also detect where you are located so as to give customized local info.
Earlier when Google first introduced voice search in 2002, it was used as follows: