Straight from Google’s Mobile Blog: It’s easier and faster than ever to search Google using your Windows Mobile phone. Just visit m.google.com to download the latest version of Google Mobile App, which includes these new features:
My Location. Get local results without typing your location. Once you see the blue My Location dot with your current location below the search box, simply search for a local query, for example "italian restaurant", and the search results will contain local business results along with web results. To protect your privacy, location is encrypted when sent to the server, and only your most recent location is stored so that successive searches can use the same location. You can disable My Location at any time in the "Advanced Options" screen.
Google Suggest. Reduce typing time by selecting suggestions to complete your queries. You will also see URL suggestions, which bring you directly to a web page, skipping the search results page entirely. Try typing "facebook" to see this kind of suggestion.
Search with Maps. If you have installed Google Maps, type a local query and wait for suggestions. Select the suggestion with the red pin next to it to launch your search inside Google Maps.
To download the new version of Google Mobile App, visit m.google.com from your phone.