MapQ is an easy to use wrapper for the Mapquest Geocoding API. It advises developers to interact with the API by making the environment variable in the local environment. Developers can also interact with the Geo class to work with the API.
After much anticipation since its private beta release in March, Yahoo! has made Fire Eagle publicly available. Fire Eagle is an open geo-location platform that allows users to broadcast their geographic location to the Web while at the same time giving the the ability to easily control how and on which sites location data is shared (our Fire Eagle API profile).
Shoudio is an amusing iOS application made to tag places with audio snippets. These can be anything a user imagines, and a lot of fun could be had with this. For example, integrating this into Geocaching could be a lot of fun, allowing things like audio hints to help Geocachers find the cache. However, the developers of Shoudio didn't want it limited to just one platform, so they released a Shoudio API to allow clients for other platforms, and fun mashups.