@Frankrockz told TechUnwrapped he found some interesting iPad Retina Display sized graphics hidden in the Twitter frameworks of the just-released iOS 5 beta.
As I was going through the iOS SDK I came across some images in the new Twitter .framework. The resolution appears to be 1,536 x 2,048.
That, of course, is the magic 2x number needed to take the 9.5-inch iPad display to Retina levels. Similar 2x graphics were previously found in iBooks before the iPad 2 release, so it doesn't necessarily mean iPad 3 will be getting Retina Display -- depending on costs and production yields it could be iPad 4 -- but it does mean Apple is continuing to get ready for it at some point.
Would you be willing to pay more for a 1,536 x 2,048 iPad 3, or would you prefer Apple hold off until they can cram four times the screen into the same price?