Keynote vs PowerPoint -- Apple just gets it
by Daniel H. Steinberg
Related link: http://developer.apple.com/technotes/tn2002/tn2067.html
End-users can just create presentations with Apple's Keynote application using toolbars, menus, and palettes the same as they would use PowerPoint. That's where the similarities end. Apple has published the Schema for their "Apple Presentation XML ... for developers who wish to create or modify Keynote presentations programmatically."
Has anybody XSL-transformed Keynote files to html yet ?
Can you view keynote files on your browser, with some XSL transformation?
This would bring a nice cross platform viewer for keynote presentation ;-)