Does this mean all flash content, or only content that does not mean certain requirement.
Considering that adobe published SDK to extract swf’s content (initially for search engine) in 2002, I would expect decent screenreaders being able to read basics swf.

A lot of the work towards making scripted web-apps more accessible for these users is based around the WAI-ARIA technologies. However, since these are implemented only in a small subset of clients, it’s difficult to know their efficacy.

I had largely assumed that a user reliant on screenreaders or similar technology would be far more sensitive to browser technology than a fully able user, and therefore would be more likely to change/update their browsers, especially where the implementation or otherwise of a particular feature would make a significant impact on their experince of the web.

On the whole though, this is tremendously interesting set of results for those of us who might have fallen into the trap of looking at screenreader accessibility purely from the perspective of someone who has never relied on such a thing.