One feature I'd love to see is a way to easily create online presentations and slideshows with cool animation and effects, then be able to download the presentation and host it on my site. For example, I need to do a presentation in the next few weeks to help our organization learn a new software package called Convio. I'd love to have a tool where I can drop text, images, and video/audio files and add effects such as animation and page transitions.

This could also be a cool training tool to help users learn the new software. What would make it really powerful is the ability to access an oline tool and create the presentation and download it to your machine. You'd have a "Created with Acrobat.com" logo on the pages of the presentation.