There is an IPv6 testbed that includes IPv6 enabled root and some TLDs. At this time, v6 enabled TLDs are: NL, JP, MIL, INT, ARPA, COM, NET, ORG, with perhaps SE, and FR coming online soon. This testbed has been restricted to those who are willing to sign a release. A simple request will get you the release form. Or should we just open this up for general use? --bill