One funny part abut the new Slideshow feature of the reader app is that it goes endlessly. The slides show goes page by page till the end, then continue again from beginning until the total page turns reach the set limit. It is very different from PowerPoint slide show and while you can set the page turn limit there is nowhere any indication how many pages is till the end of the doc on the UI. I would like to have there a simple check box "run till the end of the doc". This is just nuisance, of course. I guess that the feature was added more for a display window presentation than for end user usage. Sill I like it very much as I have converted many ppt files to pdf to slide show through them as a rehearsal
