Twitter 360 is an iPhone application that is designed to allow you to visualize your nearby Twitter friends. It uses the new Twitter Geotagging feature to geotag your tweets.
"Latest Tweets" mode. See the latest tweets of your friends (iPhone horizontal position), and the location from where they were posted (iPhone vertical position) using the Augmented Reality functionality. When a tweet is selected, a blue arrow (compass) is displayed to show the direction and the distance to the location from where the tweet was posted. The distance is updated in real time as you walk in the streets.
"Locate my Friends" mode. List of all your best friends. Twitter 360 lets you track geographic movements of your friends, you can now see where are located your nearby friends via Augmented Reality. If you want to hang out with a particular friend, use this tool to go meet him / her. Unlike the "Latest Tweets" mode (which is more focused on the tweets), the location of each of your friends is calculated with the "location" field data on the Twitter account. When a friend is selected, a blue arrow is displayed to show the direction and the distance to the location of that friend. The selected friend is highlighted in blue. The distance is updated in real time as you walk in the streets.
Take a look at this short video demonstrating the use of Twitter 360.
(Video demonstrating the use of Twitter 360)
Daniel Suarez' new novel Freedom makes substantial use of the augmented reality concept. Many people have special sunglasses that all them to impose a "gamer" view on the real world, in which each person has a tag showing their username, status and social responsibility score.
Ross flipped his HUD lenses back down and saw darknet call-outs hovering above both men. They weren't only security guards - they were ninth-level Fighters with four-star reputation scores, from the Dark Rose faction... The one on the left was Warder_13. Ross knew that his own call-out showed him to be a sixth-level Rogue with a four-and-a-half-star reputation...
Compare Suarez' description with this screen capture of Twitter 360 on an iPhone screen: