Update to Google Maps 5.7 for Android brings Transit Navigation and more new features
The updated Google Maps app for Android now supports one click access to Navigation. If you click on the driving or walking icon and you have selected a route that is supported by Google Navigation, the familiar blue icon will appear and when clicked, will take you to the turn-by-turn directions. Google has also added category icons for search suggestions such as a pin for a Google Places recommendation or a star for a 'starred' place or location; a previously used search term will get a clock icon, a person icon appears for contacts while a magnifying glass appears for all others.
Finally Google has added a photo viewer for Places which allows Google Maps for Android users to look at pictures of possible destinations before deciding where to go. Google Maps 5.7 can be downloaded for free from the Android Market and requires a phone running Android 2.1 or higher.