The nookMedia app is pretty straight forward except for the UI. The application uses the page turn buttons as well as the touch screen to operate the UI.
To maneuver around lists, the left page buttons go up and down and the right buttons go forward and back. When you see a soft keyboard, that means you can filter the list on the screen by typing
Five is a streaming media framework designed to efficiently expose media hosted on your home PC via your cell phone's data connection. It does this by passively synchronizing meta data and actively streaming/caching the media itself