The whole HTML5 vs Flash debate really started with the launch of iPhone worldwide when more and more people became aware that Flash-based websites didn’t work on iPhone. With that, non-flash versions of previously Flash-based websites began to popup around the Internet as more and more people started using iOS devices such as iPhone and iPod Touch.
Then when iPad came about a year ago, Flash almost became world-known since iPad, like iPhone, also did not support flash. I’m sure web companies such as Tampa web design saw an increase in their business as more and more website owners wanted to optimize their website for iOS devices. I believe there are some 100 million iOS devices out there now (iPhone, iPad and iPod Touch) so that’s a big chunk of the Internet to cut-off by relying mostly on Flash for your website, shop, portfolio etc.