We are pleased to let all tunnelbroker.net users know that we are participating in the Google over IPv6 project and we've set up a network of whitelisted anycasted recursive caching nameservers. This means using these nameservers will allow you to visit Google's various services over IPv6, like www.google.com, mail.google.com, news.google.com and more (not just ipv6.google.com!). Google has more information on this whitelisting project at http://www.google.com/ipv6
You should use 2001:470:20::2 as your IPv6 enabled recursor, and if you still want one available over IPv4, please use 74.82.42.42.
These are also displayed on the "Tunnel Details" page when logged into tunnelbroker.net.
Thank you and we hope you enjoy the additional service. Any questions, bugs or comments, please send email to ipv6@he.net