We told you about Shanghai's skyscraper envy. Now, the World Financial Center has barely been completed but our wonderful city has already announced plans for yet another skyscraper that will dwarf it. Two days ago, the all-authoritative Xinhua produly proclaimed that the new building, which is to be named Shanghai Center (we are unsure if this has any relation to the existing Shanghai Center) will be the world's tallest at 580 meters and 118......