ESRI's New ArcGIS API for Flex

Flex is a client-side technology that is rendered by Flash Player 9 or Adobe AIR. This means that application developers now have the capability to combine geographic information system (GIS)-based Web services from ArcGIS Server with other Web content and display it in fast, visually rich, and expressive mapping applications that can be deployed over the Web or to the desktop.

ArcGIS API for Flex takes full advantage of the mapping, geocoding, and geoprocessing capabilities of ArcGIS services. Application end users can display their local data in an interactive map, search for and display GIS data features and attributes, locate addresses, identify features, and perform complex spatial analytics by clicking a button or on the map.

Developers can program with ArcGIS API for Flex without installing ArcGIS Server on their machine as long as they have access to ArcGIS Server via a URL. Because the API is built on the Adobe Flex framework, developers can incorporate Flex components, such as data grid, trees, panels, and charts, into custom applications.