[2] The contact information exchange occurs instantaneously and the user's phonebook updates automatically.
Mobile social address books also provide dynamic updates of contacts if their numbers change over time.
The first Mobile social address book appeared in 2007 by a company called IQzone Inc., which was founded by John Kuolt.
Users can easily exchange contact information regardless of their handset, mobile carrier, or social networking application they use.
It is a network address book so everything can be managed from Windows or Mac as well and lastly you can also set your one callerID picture and status for your friends to see when you call them) FusionOne (whose backup and synchronization solutions lets users easily transfer and update mobile content, including contact information, among different devices); Loopt (whose Loopt service provides a social compass alerting users when friends are near); OnePIN (whose CallerXchange person-to-person contact exchange service lets users share contact info with one click on the mobile phone); and VoxMobili (whose Phone Backup and Synchronized Address Book solutions let users safeguard and synchronize their contact information among different devices).