I have the Kindle DX also, and it's too low contrast and the type on most academic papers (that I read) is far too small. I'm 25, so it's not as if it's my eye

I have the Kindle DX also, and it's too low contrast and the type on most academic papers (that I read) is far too small. I'm 25, so it's not as if it's my eyesight that's the problem. On the other hand, reading them on my iPad with a tool like iAnnotate, I can not only make the text bigger, but mark the PDFs up with highlights, boxes, and notes (which are PDF format standards -- not special to the app itself). And transfer them over wifi.