I give a lot of talks, often using the much maligned PowerPoint software (I’d be happier with OpenOffice Presentation, but it isn’t ready for professional use yet).
Today’s invention is an enhancement to these presentation programs which would allow a small window to appear (only on the presenter’s screen) in which a reduced size version of the next slide would be displayed.
This would allow me to anticipate what was about to be seen by the audience and thus smooth the delivery of my material.