One of the key actions required to make Mobile 2.0 real is to allow people to use voice commands instead of typed commands. Looks like Google has made a big leap:
Both Yahoo and Microsoft already offer voice services for cellphones. The Microsoft Tellme service returns information in specific categories like directions, maps and movies. Yahoo’s oneSearch with Voice is more flexible but does not appear to be as accurate as Google’s offering. The Google system is far from perfect, and it can return queries that appear as gibberish. Google executives declined to estimate how often the service gets it right, but they said they believed it was easily accurate enough to be useful to people who wanted to avoid tapping out their queries on the iPhone’s touch-screen keyboard.
The service can be used to get restaurant recommendations and driving directions, look up contacts in the iPhone’s address book or just settle arguments in bars. The query “What is the best pizza restaurant in Noe Valley?” returns a list of three restaurants in that San Francisco neighborhood, each with starred reviews from Google users and links to click for phone numbers and directions.