JSF Flex goal is to provide users capability in creating standard Flex components as JSF components. So users would create the components as normal JSF components and the project will create the necessary SWC, SWF files and etcetera and link the values of the components back to the managed beans using JSON+Javascript and Actionscript. {standard Flex components has been open sourced through MPL license}
Currently many of the standard rich flex widgets (buttons, sliders, inputs [richTextEditor, textArea, ...], progressbars, colorpickers, various panels [accordion, tabBar, ...], and etcetera) have been written as intention of support.
jtracc allows you to translate your JSF web-application directly in the web-browser. You will never again lose the context during the translation process! This is realizable by extending your project with jtracc (more information available in the tutorials).