The Geocodio Reverse Geocoding Clojure Sample Code demonstrates how to convert latitude and longitude into street addresses. A response would show number, street, suffix, postdirectional, formatted street, city, county, state, zip, and country as address components.
Sickweather is known for its real-time illness tracking. Where hospitals and government agencies take weeks to report illness trends, Sickweather scans social media outlets for real-time tracking and reporting. Now, Sickweather has made the API behind the tracking service available to developers.
Once you get beyond the most basic map mashups, you'll run into a problem with data storage and access, because you can't hard-code hundreds of markers. It's a problem that SimpleGeo wants to fix. And from the looks of their new platform, they've gone beyond expectations.
MapQuest's recent entree into mobile developer tools is an interesting one. Choosing Android over iPhone means going toe to toe with Google, a familiar competitor to MapQuest on the mapping front. Mapping is logically MapQuest's turf. The company was helping people find directions online before Larry and Sergey were even in graduate school, let alone leaving to found Google. Of course, another way of looking at it is that Android is in line with MapQuest's latest push to open up mapping data.