Over the weekend, we saw the swirling rumors around the specs for the (presumably inevitable) iPad 2 start to come together. One of the most intriguing suggestions, which Engadget claim to have a reliable source for (and MacRumors some corroborating evidence to boot) is a higher resolution screen to match the iPhone 4's Retina Display -- specifically, doubling in both directions, changing from 1024x768 to 2048x1536.
This has prompted some discussion around exactly what Retina Display means, and whether this would count. The iP