Tagwhat was launched, allowing users to place digital tags anywhere on the Earth using augmented reality and location-based social networking technology. Read on this is NOT like other tags and location based services!
Users hold up their mobile device and geo-contextual tags from their pre-selected friends and community members become visible. Examples of things they can see include a discussion thread for a meet-up with friends or a coupon for a restaurant. Users can switch between the augmented reality view where tags are overlaid onto actual surroundings and the map mode. The information can also be accessed via a web browser, making it accessible to those without a smartphone.