Interesting… Slidy by Dave Raggett.

Despite it being a pest, PowerPoint is of course still “the standard”. Yes, Apple’s Keynote is very nice. OpenOffice.org just clones PowerPoint and thus suffers from the same problems… the main issues I have: maintenance, collaboration, and reusing components.

With a decent system that uses XHTML as its format, distributed revision control would sort out the maintenance and collaboration, and as one would be able to chop things up, that deals with re-use (and single source for one component that exists in multiple presentations). Nice. Haven’t (yet) looked at this in detail, but it seems more sensible than some other frameworks that have been created earlier.
Simple is good!