LeaVerou/dpi — pull request #33 by robwierzbowski (2013-06-27 23:55:08+00:00)
Title: Revise Retina reference on FAQ

Apple's Retina is defined by pixels per viewing degree (i.e., some ppi / estimated viewing distance = Retina), so Retina devices have varying ppi/dppx. Revised the reference in the FAQ to a device that has 2dppx.