After I saw someones presentation using an Ipad, I tried the Edge. Alas, I had the same negative experience (using a pdf, made from a Microsoft powerpoint presentation) : on the lcd, grey fields on both sides (in landscape). When zooming in the page doesn't fit on the page anymore, so that's no option. And there is even a bigger problem: it is very difficult to go to the next slide. When touching the screen to scroll to the next slide or to position a slide correctly, it automatically zooms in uncontrollable and it is difficult to postion the new slide centered on the lcd screen. Third problem is, that de slides load very slow. Using the eInk screen for the presentation doesn't have most of the above mentioned problems. Only the grey fields (above and below the slides). But it's not in color, so not a very good alternative. All in all my conclusion is, that the Edge cannot be used (yet?) for presentations.