Perish the thought that an FA is allowed to show one.
Aussies used to be known for their relaxed attitude and sense of humour, but no longer I guess.
(From what I saw, the a/c had pretty much finished its landing by the time the FA started goofing around).
IMHO, whether a pax not being allowed to have their camcorders on for takeoff/landing is one of the more "difficult to enforce" regs. While many airlines have specific rules for this (QF being one of them) levels of enforcement vary.
IMHO, the most dangerous aspect of this is the possibility that the camcorder may become a missile in a sudden deceleration, or become a hindrance during a "brace" call. But the same could be said for a pax reading a book, magazine, or even holding a drink bottle, and none of that is banned during takeoff/landing.
My 2c.
DIVOSH!