Setember 2013:
The most recent version of the OSGeo-Live presentation has been moved into
a HTML format (using reveal.js), and in now incorporated into the main
OSGeo-Live documentation.
It is stored here:
https://svn.osgeo.org/osgeo/livedvd/gisvm/trunk/doc/en/presentation

And may be viewed here:
http://adhoc.osgeo.osuosl.org/livedvd/docs/en/presentation.html