Recently Ms Laura Bergells showed us an interesting research on PowerPoint Death with data analysis. Clearly, more and more people is concerned about the health statistic of our PowerPoint, because we’re still using it well now and gonna use it more in the future.
I agree that PowerPoint is the best ever presentation tool for desktop authoring. And I guess everyone is considering the inevitable threats from so many Web apps for presentation. PowerPoint is experiencing a midlife crisis as everyone does, but we still like it, don’t we? 
William Peterson
Presentation Veteran