This chapter explored a variety of ways you can deal with data in your Windows 8 applications. You learned how to save and retrieve data from file storage, access it over the Web, and syndicate it through RSS and Atom feeds. You learned about the built-in tools that make it easy to encrypt and sign data. Finally, you saw how easy it is to connect to existing SOAP and OData web services by generating proxies and retrieving data asynchronously from external APIs.
In the next chapter, you will learn how to keep your application alive even when it is not running through the use of tiles and notifications. Tiles provide information to the user at a glance on their Start screens and can be refreshed even when the application is not running. Notifications can be generated from within the application or by an external source to inform the user when important events happen and provide a contextual link back into the application.