It came across one of the mailing lists out there this morning, about IPv6 only access using a Mac with 10.6.8. An employee at Telefónica made and shared the following video demonstrating it working: http://www.youtube.com/watch?v=zLwQafKcEz0
Nice. I noticed there was a comment in the 10.6.8 "release notes" about ipv6, but as usual for Apple there were no details. Did this not work in 10.6.7? Are there any other changes that anyone has discovered?
iChat still seems not to support proxies over v6, at least.