I have friends, clients and acquaintences who seemingly cannot live without PowerPoint or other presentation software. This is going to break their hearts.
As soon as I see a PP presentation beginning, I start to fall asleep. This seems to be a common reaction and I have long suspected people generate these things because they do not trust themselves to speak or write well enough to get their point across. It has always been my position that a well done PDF with a few illustrations (when absolutely necessary) does the best job of carrying the point.
Now I have scholarly evidence! :)