I like the idea of conference presenters having a place to upload their presentation documents so that can be reviewed and made available to attendees. I think the upload location could be set up as a component of the event set up. Perhaps a special page called Session Details which would house the event agenda or session listing. Then the presenter could add (via a special registration code perhaps) their document using the same functionality that the admin user uses when editing a webpage and adding a document via a hyperlink. So the layout could look like this:
Big Fantastic Trade Show
Monday, January 5
9 am - 10 am The newest features of Wild Apricot
10 am - 11 am How to build a great website Click for handouts
Etc.
So if someone clicks on the session name they would hyperlink to the powerpoint slides or the word document or whatever the presenter has as their main presentation information. If the presenter had additional handouts they could add more links. This webpage would then be available to attendees all the time. And the presenter could update or replace their documents when needed. Then the admin person could set when to close down this event so people could get these documents after the show or just shut it down when they want. The control over the registration until date already exists so I could see this being controlled independent of the existing registration process.
Just and idea on how this would work.