found that it was unacceptable That has been my experience as well. Not only is pdf rendering slow on the Kindle, but it doesn't have high enough resolution to

found that it was unacceptable That has been my experience as well. Not only is pdf rendering slow on the Kindle, but it doesn't have high enough resolution to display a paper legibly in the common two column format that most journals use. You can jump through some hoops and in some cases reflow the paper. I didn't try it, but it looked like a hassle. The iPad has much better rendering speed, but it also lacks the resolution to legibly display a two column article, as one would see it on paper. It would be wonderful if I could carry around my entire collection of journal articles on a tablet, but the display technology just doesn't seem to be quite there yet.