As Mauricio Freitas points out Yahoo!xtra has a page up for a sneak preview, but with nothing showing just yet. I noticed one other thing- the url: http://au.docs.yahoo.com/xtra/ and the copyright message at the bottom, which is “© 2007 Yahoo! Australia & NZ Pty Limited.
From this can we (over-)read that NZ is being run as part of the Australian company, and that NZ plays second fiddle? The question is whether the NZ branch will be run from Australia (or the USA?) or whether there will be technology people based in NZ. I would assume that there will be sales professionals based in NZ, as even Google has now a local presence. Yahoo has very low penetration in NZ versus say the USA, so perhaps they may wait.
