After taking a look at Xcode in an Air Display window on a new iPad (2048x1536 across 10"), I don't think I'd even want to use the MBP retina display at native

After taking a look at Xcode in an Air Display window on a new iPad (2048x1536 across 10"), I don't think I'd even want to use the MBP retina display at native res - I was having trouble reading the text at > 12" away.