I could test HDMI audio with the Speak Up image if you like (I've been swapping from analogue to hdmi audio for something else) Could you send me a link to the image (wasn't sure which website was being referred to in the above post: "SpeakUp image of Raspbian, which can be downloaded from the web site")
Aside from this I'm interested in access to a PI terminal through a web interface. Perhaps this could also be one way to add accessibility features both to input and output coming from the Pi? Just a thought?!