You may think that buying an iPhone with AT&T service is an expensive commitment, and you’d be right. But as this chart from BillShrink shows, your total cost of ownership (TCO) for any of the latest smartphones is going to exceed 2 grand over a 24-month period. In fact, the highly-praised new Motorola Droid on Verizon works out to exactly the same TCO as the latest iPhone.
