I used Adobe Flex Builder 3 to build a simple rich Internet application (RIA) that allows users to submit keywords to the Flickr API and view thumbnails of the first 20 results. Flex Builder creates MXML, an XML-based markup language, to build the graphic user interface. The Flex Builder interface is similar to the Actionscript interface within Flash. Many of the components are prebuilt, and can be dragged and dropped into the coding area.
Test the RIA in a new window: click here.
Here's a shot of the main source file:
