More than you ever wanted to know about PowerPoint (but you'll say HUH! at least a couple of times). For instance, "The original business plan for PowerPoint was 53 densely worded pages, with a dozen accompanying slides." http://www.russelldavies.com/writing/tuftepowerpoint/tuftepoint.html
@estherschindler
Fun Fact: KeyNote was developed purely because Steve Jobs despised PowerPoint and refused to keep using it.