Google has added voice search to Google Maps. If you use the Chrome web browser on maps.google.com (other countries' Google Map domains are not supported yet) you can speak into your microphone and search for a location on Google Maps by voice.
To search by voice just click on the microphone icon in the Google Maps search box. Using voice to search Google Maps is very fast - check out the video below (sorry for the poor quality - it was filmed from my phone)
Via: Google LatLong