Writing for NY Times, Jenna Wortham says the clearest sign that the iPhone has become a centerpiece for Apple just might be the 24-foot monument of 20,000 LED lights at the company’s headquarters.  Each time someone purchases an app for their iPhone through the App Store, the corresponding icon on the LED wall lights up.  Wortham looks at how Apple s success with the iPhone has changed peoples’ perception of what a smart phone should be.  The tectonic shift hasn t just been to the mobile device landscape, it has taken hold of Apple as it begins to sense an opportunity to become the Microsoft of mobile.  All it has to do is fend off a sudden onslaught by critics of its app approval policies, not to mention fierce competitors geared up to take a bite out of iPhone’s dominance.

Read the article at NY Times.