Mac Rumors has gotten their hands on an iPad 3 display and plopped it under a microscope. Their findings are that there is four times as many pixels in the same amount of space. That effectively means that the dimensions have each been doubled from 1024 x 768 to 2048 x 1536. At that extremely high resolution, Apple will undoubtedly market it as a Retina display.
That is enough confirmation for me. I will be extremely surprised if the iPad 3 does not have a 2048 x 1536 display. Now the main question I have is will the A6 processor be dual-core or quad-core.
Source: Mac Rumors