The MapQuest Android Sample Code by MapQuest demonstrates code to access basic map view, basic satellite view, latitude/longitude, polygone, location, and traffic. Enterprise key is required to interact with the API. An unofficial sample is available at https://github.com/sebasira/Android-RouteWebService
ResultR deserves mention as it's a meta search engine mashup built by two self-described "Web 2.0 Kids" as a high-school project. With it you can create your own search engine by choosing from 30+ sources you might want to include in your results.
Geoloqi has added added platform-specific SDKs to its collection of developer tools for real-time location. The SDKs interact with the Geoloqi API and have native tools to improve battery life and simplify common location-based app features. The company hopes the new enhancements will encourage broader use of its platform, which has already found fans in government and enterprise.