Top 20 NuGet xamarin.forms Packages

RestClient for Xamarin Forms
Salesforce for Xamarin SDK is a cross-platform API for Salesforce supporting Xamarin.Android, Xamarin.iOS, Windows Phone Silverlight 8 and 8.1, Windows Phone 8.1 (WinRT), Windows 8.1 (WinRT) and Universal Windows Platform.
A RecyclerView control for Android, Incremental Collection for Windows Apps
Custom control for your Xamarin.Forms that allow you to use a checkbox in your cross platform projects. Ensure you call CheckboxRenderer.Init(); on each platform! Built against: 2.1.0.6529
HolisticWare.Auth temporary replacement for Xamarin.Auth during porting/refactoring and testing
Supports the DeviceDrive SDKs for iOS/Android in Xamarin
CrossPlatformLibrary.Camera is a plug-in for platform-independent access to the photo/video cameras.
Make your Xamarin.Forms tabbed pages look more familiar to your users. built against 2.3.3.180
Easily support authentication in your app using passwords, or popular federated identity providers like Google, Facebook, and more.
A Xamarin.Forms layout to bind data to a wrapped data. Allows for observable child views and auto updating layouts.