One reason that Keynote doesn't have that much penetration is that there is no Keynote Viewer or Player (like PowerPoint has) for the PC. I would love to use my Keynote to make a presentation, but most places I present have PCs. It is so much easier to plug a thumbdrive in, rather than bring a mac from home just to give a talk. So I end up using PowerPoint on my Mac. Why can't Apple do what PowerPoint does and create a small Keynote Viewer for PCs? Then we could save the Keynote presentation, and its viewer onto a thumbdrive and play it anywhere there are only PCs (like 95% of the world) Simply saving a Keynote file in Powerpoint mode doesn't work, since lots of slide transitions, animations, etc get messed up in the process. Anyone agree?