As of September 12, 2005, the following documentation has been released for the iWork apps’ XML specifications. Very nice! Thanks, Apple!
This precludes us from having to use the “Standard Warning” (about using undocumented General/APIs / Specifications). This page can now be re-factored as a how-to / example code page. Yay!
And it looks like the file format may suck: http://www.tbray.org/ongoing/When/200x/2005/09/18/Apple-XML
Is there any example code out there showing how to open and display contents of these files, especially Keynote?