Google has just released an updated version of their Google Maps for mobile to version 2.2. The version 2.2 is available for Symbian S60 (3rd edition or later) and Windows Mobile (2005 or later). The new version has already been released to Blackberry devices and Java-based software, they are adding the Transit directions feature to even more mobile devices today.

The Transit Directions is not available for all the cities though, check out this page for the list of supported cities. According to the google blog post

Simply bring up Directions from the main menu and you’ll see a second tab labeled Transit (or Public Transport), where you can request a route using only public transportation. You’ll receive a number of alternatives that take you (car-free) to your destination.

To get this latest version of Google Maps for mobile with Transit, simply point your mobile browser to google.com/gmm