Actually, Clay Christensen's definition of disruptive innovation is new technology that has fewer features than existing technology. The new technology finds us

Actually, Clay Christensen's definition of disruptive innovation is new technology that has fewer features than existing technology. The new technology finds uses amongst a previously under-served constituency, and then improves in features until it serves existing users better than the old technology did. I seem to recall an interview discussing with Ward Cunningham his invention of wikis. What is interesting to me is not the fewer features but the intelligent selection of only the important ones. I am still amazed by the prescience of Cunningham and Williams.