In reply to twm.bwen:
Not disrespectful at all, although it is apparently if done by a female.
We are a multicultural country. Maori, Pacific Islander and increasingly Asian. That NZ is willing to embrace Maori culture and celebrate it to such an extent should be seen as a positive, and the haka is performed with pride rather than begrudgingly.
Many kiwis wear Maori inspired bone carved necklaces, were adopting Maori tattoos long before it became fashionable, live in towns with Maori names, learn Maori when watching Sesami St or Playschool, have had a hangi, grow big puku's, listen with their taringas, can sing the anthem in Maori and know what a tanewha is and who Manu was. There is even a very active movement in NZ to change our flag to something less English and more Maori.
I certainly couldn't see the Aussies performing an aboriginal challenge, nor could I see the white South African side doing a Zulu war dance prior to a match - unless under extreme duress.
The Haka is is one of the spectacles of the game, just as the Samoan, Tongan and Fijian challenges are and any other team is more than welcome to play their own psychological challenge back....although that might just fire the ABs up even more.