A killer "feature" for a new mac pro would be if it could be bought along with a retina display. I've seen some people hoping for it this summer, but is that possible with this years technology? One selling point of the next generation thunderbolt controller (coming 2014) is that it can drive a 4k television. If Apple were to double the resolution of their current thunderbolt display the display would have more pixels than a 4k television. So I guess todays thunderbolt controller can't drive a 27" retina display. Am I correct?