The humongous amount of data that Twitter generates daily, is spawning a new breed of company that is analyzing the data and providing value-added services on it. While the data mining and intelligence applications are still in their infancy, there are interesting applications that you can use today.
JetSetMe is a project that visually displays the roaming habits of mobile phones that operate on the O2 network. The company Provides the JetSetMe API that allows developers to create applications that make use of this data. In the United Kingdom O2, owned by Telefónica, is the second-largest telecommunications provider. JetSetMe taps into network resources to access the information necessary to understand how users move throughout Europe.