The URL is http://m.kiwiblog.co.nz and it is customised for better viewing on mobile phones, and to use up less bandwidth. The sidebars are gone, and the photos are smaller. If you are on the mobile site, you can click through to the full site at the top right.
At this stage we have not set it up for auto-detect, as I am assuming people are happy enough to choose the full or mobile site for themselves. But can do so, if people want it.