ROTFLMAO. You know one of the JFK terminal solutions proposed taking the old JBlue terminal and tunnelling under 31R to all of that area where there are the cargo terminals and building a DTW style gate building.. THAT would have been much more cost effective than a connector train btwn LGA and JFK, and it was scrapped for cost.

Nope.. just crazy talk, but I am sure it has been talked about.. doesn't men there has been any serious consideration... unless maybe if it is a MagLev train that needs no track.. Now THAT would be innovative.