As someone who lived up there for 5 years right before I started climbing and there being a more than likely chance I'll be back there for a few years in the near future, I will definitely pick up a copy!
Question though- outside of the quality and quantity of rock, from what I've seen on MP there doesn't seem to be any legally accessible climbing in ND currently, no?
There most certainly is. All of the areas in the book are fine. Only one, Sentinel Butte, is private and requires owner permission prior to climbing there.