How fast will Armstrong run a marathon?

He has announced that he will run NY in November. So post your guess as to how fast. I will say 2:37 (6 minute pace).

I think this will be very interesting (I am an avid runner). He obviously has huge potential with his VO2 and endurance abilities and while he is getting old for a bicyclist, he is peak age for a runner. However, running is a much different sport from biking. Does he have efficient form? Something which can't be taught. Does he have any heretofore unknown weakness like bad knees or bad tendons or ankles which would prevent tough training? Does he simply lack a passion for running that he had for biking?