iPresent It optimizes the images to ensure that they show correctly on standard televisions and projectors.
You can, however, choose to create slideshows for viewing on your iPod.
Selecting Optimize for iPod Viewing ensures
that the slides use all of your iPod's screen. This means that the slide contents are as readable as possible, even on an iPod nano. In addition, the
slide resolution is maximized to ensure effective zooming when viewing the slides on an iPhone, iPod touch or PSP.