Accessiblity was on the radar in a big way at SXSW 2004. Not only was there a track devoted to learning more about accessibility, but people in, well, non-accessible sessions were talking about the subject. The topic of accessibility appeared during sessions on web standards, CSS, and usability. And, much to my surprise, it was part of a discussion on a mailing list completely unrelated to web development. People are thinking about accessibility.
I attended all the sessions in the track, and have to say the presenters did an excellent job of introducing the subject to those who were new to the concept — and they kept the sessions challenging for those of us who know about accessibility. The accessibility workshops, whether by design or sheer luck, reinforced a common theme, one that we at AltTags preach: accessible websites are universally usable.