The G-20 map just reminds us of the Core-Gap divide. Per the original map, I've already moved Turkey into the Core and a good case is made for Indonesia, leaving really only Saudi Arabia on the wrong side of the divide, but what else can be said of the place that treats women so and supplies so many of the world's terrorists?
But then you look at this urbanization map of the world and you realize that when it comes to shrinking the Gap, there ain't all that much ground to cover really. You just need to connect the mega-coastal cities with good rules, good supply chains, good infrastructure, good transpo and people movement and media, etc., and you've got most of the situation basically covered. The "contiguity" argument from "Blueprint" seems to hold: there's no leapfrogging. You have to move in chunks that connect to other chunks.
What the second map says to me: There are several Africas that link up to various other parts of the world. West to West, East to Asia, Horn to the Middle East, the north to Europe, etc. Integrating Africa will go much faster than I previously anticipated. Indeed, my past pessimism on that score is my biggest miscall of the last decade.
Other thing you note from the second map relates to Joel Kotkin's "The next hundred million," a book I'm currently reading: we've got plenty of room in the heartland for the next 100 million. Only 5% of America is urbanized, although you basically have to write off Alaska.