Since Microsoft launched its Bot Framework earlier this year, it has consistently added features to empower developers to create, what Microsoft calls, "the next great conversational experiences." The latest API additions include the Computer Vision, Bing Speech, and Bing Image Search APIs.
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.