OK,
a live instance of web-based SlideSpeech authoring is now running on the research server, with code version 1.6, which features the ability to import an Open Document Presentation (.odp) format presentation and parse it into individual slide images (.png files) and the speaker notes for each slide. The speaker notes become text that anyone accessing the presentation on-line can modify. So this system now offers a working prototype of collaborative (one person at a time) work on a presentation.
Again, this is just using eSpeak (an old and very "computerish" voice), but that should change very soon.
To "clone" a presentation, change the script name and publish the clone.
Add interaction.
More tutorial videos coming soon ...