How are channels and homescreens different from widgets?
The term “widget” is used in many different contexts. Channels and homescreens are complete lightweight Flash applications. Widgets tend to be low-level components that still must be assembled into an application. They are used most often to provide an onscreen representation of a UI control that can be manipulated by a user with a button or scroll bar. Channels and homescreens, on the other hand, provide a complete application framework with built-in navigation, data integration, preferences, and UI components that significantly speed up application development and content delivery.