I agree, great questions. Though admittedly they are a plug for one of his projects, DistruptiveInnovation.org
What is an innovation? What is the difference between ideas, inventions, novelties, discoveries and creations?
What is a disruption, formally-speaking? Also, what is it informally speaking? Why the distinction?
What is Performance (or P-space)? How does Performance relate to utility, quantity, price and other microeconomic concepts?
What is a new market? How do we distinguish a new industry from a new market.