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.
The travel site Orbitz has partnered with Google to show a virtual walking tour of the neighborhood around a hotel. You and I know it as the Street View API, part of Google Maps (our Google Maps API profile).