Apple is certainly pusing the envelope (again!) in this area, but with HTML5 still a developing standard, some content providers have been hesitant to make the transition. However, that is changing. Google recently released a SWF to HTML5 converter that developers can use. It is in beta, but it certainly gives HTML5 a boost. Even Adobe is starting to become more HTML5 friendly. I think it is just a matter of time before HTML5 is the dominant development platform. However, at this point, especially in the area of educational content, there is still a lot of flash being used, so we'll deal with some workarounds for the near future.
Verizon Thinkfinity Community Host
Um, I think Steve was wrong to diss Flash, which is one reason I own no Apple products.
As for HTML 5, I am no expert (and I don't want to derail this topic) but everything I've read says that there's no "standard" standardized yet. According to W3C, it's still in draft. http://www.w3.org/TR/#tr_HTML
And considering how many sites still are not compliant with HTML4, and the cost to some sites of converting Flash objects to HTML 5 objects, full transition may be a long time coming.