Xamarin Forms Shared VS PCL VS .NET Standard Projects
Official Xamarin IoT Samples
Xamarin Cross Platform Data Storage
Xamarin Forms Plugin and Great Code Examples
Installing Beta Apps on Android
Hockey App SDK tutorial for Xamarin and Xamarin Forms
Xamarin Mobile Jumpstart App (XOMA)
Xamarin Connected To Azure IoT Suit Remote Monitoring
IBM MobileFirst SDK for Xamarin
AWS Mobile SDK for .NET and Xamarin Guide
Microsoft MyDriving Sample (full Azure IoT solution including Xamarin app)
Xamarin Presentation Reference App (using Azure IoT Hub Suite)