As Birmingham bruiser Brucey pointed out over the weekend, the W3C are keen for web developers to start embracing WAI-ARIA techniques now. As he said:
The Web Accessiiblity Initiative’s Accessible Rich Internet Applications Suite, WAI-ARIA is a simple way to add information to HTML that can make Ajax applications accessible. It’s being supported by all the big four browsers and screenreaders are starting to support it. … Therefore, although the specification is still formally in “Working Draft” status, the W3C are encouraging authors to use it now.
I’m keen to put this in to use with something, but have been so careful to avoid AJAX and the like for some time that it’s actually quite a difficult thing to break out of that mindset. But the moment that I do see an opportunity, I’ll be implementing ARIA.