Swizzle started out as some stream-based parsing code I've had sitting around for quite some time. Once the project was established, it became my dumping ground for all things of a swizzling nature; poking at or mucking with unprocessed or unusable data. Generally, to swizzle unconsumable data into a consumable form.
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.