The Erply C# SDK by Erply is available for download fro the official site. It allows API interaction to access inventory, products, customers, webstore, management, documents, and reports. Requests and responses available in HTTP/POST and JSON/XML respectively.
Google has agreed to acquire the majority of Twitter's developer suite, including Fabric and Crashlytics. The goal is to ensure developers have access to the best possible tools for creating apps. Google says developers should keep their ear to the ground about potential changes.