You can write on the Que using your finger. There is also a virtual keyboard that you can use to add notes. You can use a stylus that is designed for a capacitive touch screen, but one is not provided with the Que. When I asked the rep why they didn't provide a stylus, he hemmed and hawed and then told me it was just easier to use your finger.
I don't know about anyone else, but for making written notes, I prefer a stylus. It seemed to me that they only anticipated people circling or highlighting and then using the keyboard to make "word" notes.