Slight correction, it wasn't my missus saw it, it was one of her colleagues - their office is on Old Slip, overlooking the area - just a few yards North of the heliport.
Third-hand eyewitness etc. etc. but I don't see any reason to disbelieve a tailstrike at this stage. Yes it was hot enough to grow doughnuts in New York today - record high for June at JFK - believe the pax were not American, so weight issue may not have been quite so critical but still, in these temps...
On a more unhappy note it's now reported that one of the survivors is in a coma...
R1