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I would love to have a Macbook with retina display, since i have the iPhone4 i got used to it and always shudder when i get the smartphone of a friend and those see those old school pixelated displays.
What is a retina display?
Based on the assertion that a display of approximately 300 ppi at a distance of 12 inches (305 mm) from one's eye is the maximum amount of detail that the human retina can perceive. Retina displays are displays that exceed this ppi ratiom. For example the iPhone4 has a ppi of 326.