Dear Aunt TUAW,
I'm in love with the new MacBook Pro Retina but it's way too expensive for my wallet. Why can't I just get a Retina display on an affordable MacBook Air instead?
Your loving nephew,
Jim J.
Dear Jim,
Although a lot of consumers would benefit from a consumer Retina display, it's not that simple both for economic and technology reasons.
The Retina display provides one of Apple's key selling points for its top-of-the-line models: the iPhone 4S, the new iPad, and the new MacBook Pro. Although the new iPad is a "consumer" machine, it represents the high end of its iOS family.
Adding the Re
