air

The document discusses Rich Internet Applications (RIAs) using Adobe Flex and AIR. It highlights key features of Flex like vector graphics, rich media support, performance, real-time messaging, and desktop functionality. Flex allows building RIAs using MXML and ActionScript with a rich UI component library and support for data binding, services, and visualization. The Flex SDK and FlexBuilder IDE are open source and support building complex RIAs for the web or desktop.