This just came through the system and may apply to some clients and /or users.
It is vitally important that when situation like this comes up, and it is relevant to your business, you jump on it asap. Once they are released you lose the opportunity if someone else nabs it.

InternetNZ (Internet New Zealand Inc), through subsidiary company the Domain Name Commission Ltd, advises .nz domain name holders that they are able to apply for macron versions of their domain names in a ‘sunrise’ application period that runs until 6 July 2010.

The addition of macrons to the .nz domain name space means that names can be registered using the characters ā, ē, ī, ō and ū, enabling, for instance, Te Reo Māori words to be correctly represented online.

Domain Name Commissioner Debbie Monahan says “The sunrise period gives existing name holders the exclusive right to apply to register macron versions of their names”.

“Name holders should take full advantage of the sunrise period before general registrations allowing the use of macrons start during Māori Language Week on 26 July 2010.”

“When the sunrise closes names will be available for registration on a first-come, first-served basis, so I encourage those interested to apply now to avoid disappointment.”

Sunrise applications can be made on the Domain Name Commission website at: 
< http://www.dnc.org.nz/story/nz-domain-names-macrons >
For more information on the sunrise registration process visit:
< http://dnc.org.nz/content/IDN_Sunrise_Policy.html >