From their site: For developers of geospatial applications, Where2GetIt offers its REST API, making the development of non-mapping geospatial applications easier than ever before. Tap into our REST API for any non-mapping geospatial application, including but not limited to wireless navigation, interactive voice response (IVR), fleet management solutions, business analytics, site selection and global positioning system (GPS) tracking applications.
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There are no mashups, developers or code associated with this API yet.
Their site still has documentation for the API, but the signup links all say the service has been discontinued.