Adobe Flex and Flash are far from dead and getting better and better. There have been quite a few new developments lately, like a brand new ActionScript compiler or the insanely cool Adobe Scout profiler (http://vimeo.com/54808142), new releases of Flash player with version 11.6 in beta right now. Visit http://flashdaily.net/ to find out how "dead" Flash is right now.
Also, JavaFX Script is dead, but JavaFX the library is doing quite well (http://www.oracle.com/technetwork/java/javafx/overview/faq-1...).