Xam.Plugin.ExternalMaps (nuget): Open external maps to navigate to a specific geolocation or address. Option to launch with navigation option on iOS as well.
Keywords: xamarin|pcl|xam.pcl|maps|navigation|external|windows|phone|winphone|wp8|winrt|android|xamarin.forms|ios|uwp|xamarin-android|xamarin-forms|xamarin-ios|xamarin-plugin