Stunning! I was just thinking about whether I should renew my subscription to Ryan's ZBrush workshop or not - I now have my answer! With all the money I've saved from not having to pay for these amazing updates to Zbrush I can put towards Ryan's fantastic videos so that he will continue to make them as Zbrush evolves even more.
These new features are truly amazing. From what I could tell from these videos Dynamesh isn't just triangles like Sculptris but quads. This is just great.