Google took the wraps off of Google Maps 5.7 for Android devices on Wednesday, and the software update adds quite a few new features. The most noteworthy addition is Google’s Transit Navigation beta feature, which provides navigation instructions for public transportation in more than 400 cities around the globe. You don’t have to leave it open, either. Once you’ve started your trip, Transit Navigation will automatically remind you with an alert when your stop is coming up. Google also made it easier to find driving or walking directions in one click, improved search suggestions with category icons, and added a photo viewer to the Places feature of Google Maps. The update is available free from the Android Market for devices running Android 2.1 or newer. Hit the jump for a video of Transit Navigation beta in action.

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