The Esri ArcGIS Runtime .NET Sample Code by Esri provides demonstrations for deploying the ArcGIS Runtime SDK in .NET applications. The sample code provides access to Windows Presentation Framework (WPF), Universal Windows Platform (UWP), and Xamarin mapping platforms. It communicates with Esri arcGIS APIs.
Geo APIs are popular in today's mobile, ever-connected world. It's hard to find an oft-used app without mapping functionality of some sort. While the likes of Google Maps and other services have popular APIs, there is a visible lack of standardization in geocoding that the OGC seeks to remedy.
The vast majority of analytics software is going to be consumed within another application, rather than exist as a stand-alone application. Recognizing this fact, analytics application vendors are racing to deliver robust sets of APIs around their applications that make it easier for developers to embed those capabilities within their applications.
What's that guy at the coffee shop typing into his computer? These days you may actually be able to find out. If he's using Twitter or FourSquare, nearby messages can be called up using the APIs. The new Geosay mashup does exactly this, showing tweets and tips near your location--or any location you request.