Correct, its all about air speed over the wing.
Given you have a high enough headwind you could get a 747 to appear to hover, this is why aircraft speed is measured as "indicated airspeed (over the
wing)" and "groundspeed".
None of the less its pretty cool to see aircrafts land in such conditions, the cub is a very robust piece of kit.
edit on 7-5-2011 by
phantom150 because: spelling