I've been playing around and have coded up a basic tunnel broker system.

You can go to http://broker.ipv6.co.nz/ and score yourself a nice public /64, which runs through my broker and then through aarnet in aussie.

I'm also in the process of peering with a few NZ ipv6 sites including APE6/WIX6

Let me know if you break it, or find any problems