I just finished your books on PHP and am wanting to focus my efforts now on more front-end development. Even after doing research, I'm still caught wondering if I should invest my time in learning Flex since everyone is quick to suggest that anything related to flash is dying a slow death and HTML5 is the future. Recognizing the incredible investment it takes to be well versed in a new language / framework what would you suggest? Does Adobe Edge suggest that Adobe is even moving away from Flash, AND their is the ultimate big gorilla of iOS mobile development never happening for flash. I hope I haven't thrown to many questions at you, I would just like to know of the best route to go considering the trends / future needs and your advice has never failed to be spot-on.