I plan on buying a 13" Macbook Air as my primary computer (web surfing, emails, etc.) but also wanted a portable Apple device to play iTunes music in the car. Would I be better off with an iPod Classic or an iPhone? The iPhone I would use as an all-around portable device, whereas the Classic would mainly be kept in the glove compartment connected to the iPod dock plug. If I get the iPhone, I would also have to get the Macbook Air SuperDrive so that I can burn music to CDs if I ever don't want to use the iPhone for car-listening (because it has so many other features built-in).