I use a Nook Color.
At first I was very disappointed with how it handled PDF files, very limited functionality on the stock PDF reader, no way to save your place if you closed it. No search or table of contents meant you had to know what page to jump to. Not very good for looking up a rule.
However, since the Nook software update it can now download and run andriod apps. I bought the ezPDF Reader app for a dollar. It's much faster, returns you to the page you were on when reopened, fully working linked table of contents, search feature, highlighting/copying text, and allows bookmarks. Now I love using my shadowrun PDFs on the Nook. For a dollar, it's one of the smartest things you can get on the Nook.
There is a drawback to the application though. It can only read PDF files that are on a microSD card, not the device memory. So to use it you need to go get a microSD card, but the price on those have dropped significantly and it's not a bad idea to enhance your storage capabilities anyhow.