Imagine a city with stores that look like jail cells, dark alleys with no end in sight, graffiti written all over the walls, and thugs on every street corner. This city is the open web, containing Google, Yahoo, Craigslist, eBay, Paypal, and others. Now imagine a city with multi-million dollar mansions, paved streets with clean sidewalks, beautiful parks with freshly-cut grass, and happy people enjoying every second of life. This is Apple’s ecosystem, led by the iPhone, iPad, and iTunes. That’s a pretty drastic comparison, wouldn’t you say? Well, this is how Virginia Heffernan of The New York…