VG meaning in Networking ?

Virtual graffiti consists of virtual objects and/or digital messages, images, multimedia or other annotations or graphics applied to public locations, landmarks or surfaces such as walls, train stations, bridges, etc. Virtual graffiti applications utilize augmented reality and ubiquitous computing to anchor virtual graffiti to physical landmarks or objects in the real world. The virtual content is then viewable through devices such as personal computers, smartglasses, set-top boxes or mobile handsets, such as mobile phones or PDAs. The virtual world provides content, graphics, and applications to the user that are not available in the real world. Virtual graffiti is a novel initiative aimed at delivering messaging and social multimedia content to mobile applications and devices based on the location, identity, and community of the participating entity.