Apple's PowerPoint Presentation application, Keynote, is amazing & even better than PowerPoint, in some ways, notably, the slide transition effects & animations.
Most people do NOT know that PowerPoint supposedly was originally created for Macs, not PCs. The original company got bought out by guess who? Microsoft, of course.
Apple has since then created their own "PowerPoint" application called Keynote. Its a part of the iWork 08 application suite. I
Just watch any keynote presentation (on Apple.com or YouTube) given by Steve Jobs, i.e. the recent 3G iphone keynote announcement & introduction.
All linux users, not just Ubuntu users, need to have a PowerPoint or Keynote-like application that is equally professional & awesome in slide transitions & animations equal to the Desktop Effects found in Compiz-Fusion. Maybe it should be some how incorporated in w/the Compiz-Fusion Technology.
OpenOffice.Org 3.0's application, Impress or Presentation, will definitely be an improvement over the current version. However, it looks like it will not have the ability to perform the same very slick & amazing slide transitions & animations especially those available in Apple's Keynote. There is still room for improvement.