The new updated version of Google Maps features several improvements over the last version, primarily in the form of a revamped Places design, improved search filtration, and a Google Latitude updating in real time.
The Places component of Google Maps now looks identical to the desktop version of the service. In fact, it now includes reviews from all over the Internet as well as user generated reviews. Searches can be further restricted to “Open now,” “Neighborhood,” or “Related searches.” Now the last part of the update is Google Latitude, which updates in real-time so you can find out where your friend is instantly. Unfortunately, for the Latitude option to work, users must be running Android 2.2 and have updated Google Maps to 4.6, however, the Google Maps 4.6 update is available for anyone running Android 1.6 or higher. You can download the update from the Android Market today.
Read [Google Mobile Blog]