Microsoft have their satellite equivalent to Google Earth: MSN Virtual Earth. Included on the site is Katrina Flyover, a birds eye view of the impact of Hurricane Katrina in New Orleans. As expected, there’s not much detail for Australia or New Zealand at this point.
There’s also the less flashy but potentially more useful Digital Earth project (less fluff anyway). Home page link below along with link to TVNZ article and video on it.
http://www.digitalearth.gov/
http://www.tvnz.co.nz/view/page/411419/611249
I’ll add in this link too to the Digital Universe project related to the above links
http://www.manyone.net/today/announcements.html