I’m sitting in a lab at Apple with Austin; that screenshot is X-Plane 835 running on a 2 ghz DuoCore Intel Macintosh in a 20-inch iMac, 512 MB of RAM. That’s 25 miles of visibility, insane roads, mega-tons of objects, 30 fps.
One reason why X-Plane runs so fast on the new iMacs is that the graphics card is an ATI X1600 – that’s a big step up for the iMac.
When will the Universal X-Plane be available? I can’t say yet but we are making progress!