I often read ebooks or documentation on my N800 and I'm annoyed because I cannot easily switch to the next page while I'm in fullscreen mode. As screen real-estate is very precious I typically zoom the pdf until the whole width of the page fills the screen. In fullscreen mode HARDKEY_UP and HARDKEY_DOWN do as you expect but the function of HARDKEY_LEFT and HARDKEY_RIGHT depends whether you have a horizontal scrollbar or not on your screen. If you don't that's fine, you can switch to the next page with the right key, but if you do the left/right keys are scrolling the page horizontally and this is how it should be. What I'm proposing is to make the HARDKEY_SELECT key a next page key in fullscreen mode. Right now the HARDKEY_SELECT duplicates the HARDKEY_FULLSCREEN one so I think some functionality is lost.
