The kindle 3 is MUCH better with PDFs than previous versions of the Kindle. When I need to read a PDF, I rotate the screen 90 degrees (so I don't have to scroll left and right), and I have no problems. With the Kindle 2, which I had briefly, there was a significant, although not unbearable, delay in going to the next page. That is no longer the case. I have found that reading a PDF on Kindle 3 is about the same as reading a book (you can even annotate PDFs now). I just need to do it sideways (no "that's what she said" jokes please).