Depeering as an IPv6 driver (was: Re: Sprint / Cogent)

I wonder if judicious use of 6to4 and Teredo would allow an IPv6 (single homed) user to access now missing parts of the Internet. Me thinks, yes. Deepak Joe Greco wrote:

Looks like maybe Sprint and Cogent are experiencing communications difficulties in the DC (and probably other) areas. Theories include a potential depeering.

... JG