I thought I came across a way to force screen orientation, but I can't find it. Maybe I was hallucinating - wouldn't be the first time.
I'm so used to reading books on my Touch Pro2 in landscape that it was downright uncomfortable reading in portrait on the NC. The Kindle app recognizes the orientation of the tablet, but the Nook reader doesn't and I could find a way last night to force it.
Maybe that'll be my first app.