In this chapter, we looked closely at how to use the mobile features of ASP.NET to target the rapidly growing segment of mobile users. For many applications, mobile-enabled content is quickly becoming of primary importance to getting key information to employees, business partners, and customers. The mobile controls rely on identifying the capabilities of the requesting device and browser. This information about capabilities is then leveraged by control adapters that produce the appropriate markup for a device. Device updates keep the supported browsers current with the marketplace, and the extensibility of the adaptive rendering architecture allows us to extend mobile applications even further.