"Everything in this book other than the cover, the contents page, illustrations, 'EN Publishing' and the EN Publishing logo, character names, 'Lyceian Arcana', and 'Elements of Magic' is designated Open Game Content."
Thanks! That certainly does answer the question. It's pretty darn open.
I dunno that my pipe dream of designing my own campiagn setting (I know, thats *everyones* pipe dream, I'm so not original) will ever come true; but I like to utilize open content just in case it ever happens. Consider another copy sold. I'll grab it tonight when I get home from work.