Scaled at 1680x1050:
[url=http://images.anandtech.com/galleries/2078/Screen%20Shot%202012-06-11%20at%204.35.55%20PM_thumb.png]Image[/URL]
(Click to enlarge)
Look at the size of the image. It's a 3,360px × 2,100px image. Basically, it's a pixel perfect rendition of a retina 1680x1050 image. That's no good to evaluate the downscaling algorithm used to display it in full screen on a 2880x1800 screen.
Sure we can use Photoshop or Gimp to downscale it, but then we have Photoshop or Gimp's downscaling algorithm coming into play. What we need to know and see is a 2880x1800 shot of the 3360x2100 shot downscaled using the same code OS X uses.
That's why I say Anand's comparison is bunk, it's not possible to see what it actually looks like on the screen.
I'll wait to see it in store. Feel free to downrank me for not "believing" blindly.