Here is a link to an article on mathml from one of the major publishers and one of their users or authors or whatever it talks about html5 as well. It tells of some of the current status of mathml on the net as of I think late 2013. http://programming.oreilly.com/2013/11/mathml-forges- This might be the best description of the state of math accessibility development I have found so far - just too frustrating for me to copy and paste or comment on, just read it for yourself if you want. Rick USA
