Thanks for the comment. The size on the map doesn't relate to importance. The map should be viewed in respect to the specific product your working on. The idea is to give more chart area to the interesting areas that are not talked about that much. Hope that clears that up.
Sure - not a criticism, just observation :)
I guess it's the complement to "Make something people want" which basically only focuses on the product - this chart shows some of the other important things to think about.
