My upstream ISP does not support IPv6

[Franck Martin <franck () genius com>]

The biggest complaint that I hear from ISPs, is that their upstream ISP does not support IPv6 or will not provide them 
with a native IPv6 circuit. 

Is that bull? 

I thought the whole backbone is IPv6 now, and it is only the residential ISPs that are still figuring it out because 
CPE are still not there yet. 

Where can I get more information? Any list of peering ISPs that have IPv6 as part of their products? 

It seems to me the typical answer sales people say when asked about IPv6: "Gosh, this is the first time I'm asked this 
one".