I've posted the notes from today's RSS, Atom, APP and All That and RELAX NG classes at Software Development 2007 West. There was quite a lot of interest in both of these technologies, though from a very self-selected audience.
Also, my apologies to everyone who showed up for the bird walk this morning that is actually tomorrow morning (Thursday). There's actually an important software development lesson to be learned there, and I'll have more to say about that on The Cafes in due course.