Now I've seen user pics of the Nook Touch I really like the screen quality.

I am a little worried about ghosting and how bad it is. What I really like to know is about the SD Card. Can I add books that are on the SD Card to shelves? If I want to pop the card out to add books. Do I have to turn the Nook off or is there an unmount option? How does it work.
On my Pocket Pro I just pop the card out, put it in my card reader then add my books and pop it back in. I don't need to turn the device off or do anything else.