What if all the world were developed?

This is just such an intereting thought experiment that it deserves a bit more publicity. Sure, there are a couple of weaknesses in it [as illustrated by the idea of the ecological footprint -where would we find the resources to support 10 billion affluent lifestyles? To be fair the article does explore some of that but it doesn't address the issue of resource use. "Natural Capitalism" may give us some of the answer to that but it'd be lovely to think that we would have that problem: developed world subsidising of agriculture [for example] militates against it; trade rules selectively imposed to the detriment of developing economies militate against it...