In past w e had told you that Google is going to bring voice search to desktop via chrome like it had in Android. We had also reported that code was found in browser, but in Google I/O that Chrome will support voice search. You can use it by saying Ok Google.
Google has also announced update for its Google Now and will get voice notification/reminders tool. Google has also introduced cards for its users which includes public transport data, suggestion for musics, books and movies on the basis of your purchase via Google Play.