That's quite a bit shy of the 326 ppi LCD on the iPhone 4S and the 264 ppi density of the new iPad's display, but it's still a massive improvement over the 1680 x 1050 pixels found on Apple's previous-generation clamshell.
The American city of the future is going to look a little bit more like the American city of the past, more closely centered on a high density downtown with mass transit increasingly used to get workers in and out.