Handmark has released an update to its popular Zagat To Go restaurant guide app, adding offline access, end-user reviews, and augmented reality features. Zagat To Go provides access to reviews and information from 45 different restaurant guides covering major North American cities, including GPS capabilities, recommendations, and support for making reservations directly from within the app. Version 3.0 adds an offline mode allowing users to synchronize the guide information to their iPhone or iPod touch over Wi-Fi for offline reference and the ability for users to add their own reviews. iPhone 3GS users can also access the new RETINA Augmented Reality feature to view restaurant locations in a real-time camera view. Zagat To Go requires an iPhone or iPod touch running OS 3.1 or later and is available from the App Store for $10.