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.
2B LOCAL - Social travel & lifestyle app with tips by friends & locals
Wikitravel - This article is a Movie/TV Tour.
FoodieTrip - Helping travelers eat like locals everywhere
Foursquare - Foursquare is all about helping you find new ways to explore your city.
Party with a Local - Party with a Local is a free app that connects travelers with locals that want to party.