It's great that these components can support AJAX, client-side, and server-side presentation generation!
With regards to the server-side version of these components, is there consideration being made so that websites could have AJAX functionality, but then turn the components to server-side mode for United States Section 508 website accessibility? It seems logical, but would like confirmation if this may be one of the directions.
Richfaces components can be customizable using CSS where you can use 508 recommendations. if you have concrete issues let's speak about them.