> So tomorrow everyone signs up for the free Hurricane IPv6 tunnel which is meant to be used by developers and administrators for system testing The tunnelbrok

> So tomorrow everyone signs up for the free Hurricane IPv6 tunnel which is meant to be used by developers and administrators for system testing The tunnelbroker service is for more than just system testing. It's meant to provide usable and stable IPv6 connectivity for people who don't have native IPv6. I've even hosted servers on it (nothing mission-critical though). You have a point that HE is not going to want to maintain it if it starts costing them too much, but note that they have a very vast global network (both IPv4 and IPv6) and can reach most of the Internet without paying for transit.