Tasker - Tasker is an application for Android which performs Tasks (sets of Actions) based on Contexts...
Foursquare - Foursquare is all about helping you find new ways to explore your city.
AutomateIt - Automate Your Android!
Tripadvisor - The Tripadvisor mobile app is available for the Android and iOS platforms. It can be used to create reviews of hotels, restaurants, and to chat with other travelers on Tripadvisor forums.
LIama - LIama is a Location-Aware Mobile app that determines your location and helps you do lots of other stuff with ease.
Yellow Pages - YP.com local search connects you with over 19 million local businesses.