Xamarin's data binding feature allows for dynamic user interfaces synchronized with underlying data without writing code for every aspect of managing those interactions. This makes it possible to create rich user interface experiences for data-driven applications with fewer lines of code. The post introduces data binding, its benefits, and how to use it in Xamarin.Forms XAML content pages by creating properties that call the OnPropertyChanged event to share changes with the XAML page. It also covers other data types supported by data binding, such as string, double, float, boolean, and IEnumerable, as well as value converters for clever conversions on data. The post concludes that data binding is a powerful tool in Xamarin.Forms and is often used in combination with Model-View-ViewModel (MVVM) architecture to create dynamic, maintainable applications.