Good piece from Tom Krazit. This breakdown of iPhone revenue divided by units is interesting:
It allows us to make imperfect estimates on just how much Apple is receiving in subsidies on each iPhone 3G. $4.6 billion in revenue divided by 6.9 million units equals $666.67 per iPhone. That’s a little high, since some portion of that revenue has to be attached to Apple TV sales, but even making the unlikely assumption that Apple sold $500 million worth of a product it calls a “hobby” during the fourth quarter puts the average cost of an iPhone 3G at $594.20.