I'm considering getting one, since more and more of the papers I need to read are PDFs and it's just easier not to have to constantly print them out. What I wonder is: How do they look (i.e. are they easy on the eyes)? They look a little small in the promo pictures...are the displays small for normal reading? Are they cumbersome? Are they compatible with all PDFs? An example PDF that I might read can be downloaded here (that's a math paper). What I'm wondering is if all the embedded stuff would screw crap up with the reader. There are obviously better sources for these questions, but I was just wondering if and TWers might have any experience with this thing.