Its nearly 4 months after you have first posted this as reply.. You still believe html5 hasnt killed flash??

Check these articles and you’ll know for sure..

http://www.zdnet.com/blog/networking/flash-is-dead-long-live-html5/1633
http://forwardthinking.pcmag.com/none/290436-why-adobe-is-deflating-flash-html5

There are so much features and articles to underline the fact that flash is dead or that process of replacing flash with html5 is currently undergoing..

Cheers..

Senses: http://senses.artpulse.me/

More info: http://artpulse.me/articles/Senses/

Performance is not the most important thing:
If you have the choice between requireing your users to have an up-to-date version of a proprietary plugin that lacks support for some major platforms and using out-of-the-box open-source browsers across a variety of platforms for the same task… the decision is pretty clear, no?

Flash has it’s niche, that HTML5[...] will not enter, and that is games etc, but HTML5 will definitly occupy sectors where Flash had been dominant.

So what Sean says: clearly you have no grasp of Flash if you think it would somehow “replace it”. Companies build full scale advanced 3D games in Flash already and there is around 40 API’s for Flash, there is a ton of coding frameworks all relying on established standards wether Pure MVC, Parsley or Robotlegs.

Clearly, HTML 5 is not at all about that, and to imply so means you are mixing up two totally different forms of languages. One still being a tag language however dynamic. Usually the end result is that people start comparing rendering speeds. Which doesnt really say anything as that is like comparing an ant to a bazooka.

As for rendering I suggest you check the Blitmask project on http://www.greensock.com. Makes HTML5 look like a turtle.

Theres no interest in the question technology vs technology as it’s artificial. You are not comparing two rivals. HTML5 is great in its own and not meant as an adversary to Flash. There’s no logical base for such a comparison as it just raises artificial emo like views.

Its like comparing eating elephant to haddock and someone goes huh what ?

That said, it can make a good alternative to Flash in some cases, and can be used to gracefully enhance without causing too many issues. You don’t need to worry about Flash blockers, search engines can see your content (good luck with that in Flash unless you’re prepared to put in a stupid amount of work) and it can be made accessible very easily (a lot of people with a disability find Flash sites a pain and often impossible to navigate)

The other aspect of it is the open nature of the HTML5 stack, as opposed to the very closed Flash. The only barrier to entry with HTML5 is in learning to code (which is slightly alleviated with Adobe Edge), and you don’t have to pay for specialist software (a text editor will do)