isc-zanlus-matt wrote:
AFAIK many (most, all) of the backbone providers in the US do not have a production IPv6 deployment.
Probably true of tier 2 / tier 3 providers. But tier 1 (the guys you think of when you think 'backbone provider') generally already support IPv6. This is probably partly because of a requirement the U.S. government set forth a few years ago -- no lucrative defense contract without IPv6 network support (as an actual checklist item for evaluating RFPs). A pretty good carrot!
I have buddies who works for network engineering at one of the tier 1s, and they've been offering full (native and tunneled) IPv6 services for a few years now.
As for my gear (and Linode), I've IPv6-ized (and tested all the weird corner cases) all my apps and servers over two pretty intense weekends a few years ago. Can be done, no problem.
I'm looking forward to the day Linode eventually is able to offer native IPv6, but unfortunately, that's probably still a while off due to colo network providers' offerings and pricing. For now, tunnel through the likes of HE seems to be adequate.