Since a few days I have a working IPv6 setup from Hetzner (native ipv6!). It took a bit of playing around with the gateway since that is in a different subnet then the range you get is, but you can get around that pretty well.
All my services (web/mail etc) had been dual-stacked to IPv4 and IPv6. That not only goes for *evilcoder.org, but also for a broad range of different hosts that I am running. Since it’s a great way to give every host it’s own IP, I also made a few more vhosts then I previously had.
And ofcourse JR-Hosting had also been adopted to run on IPv6, there all customers will gain their own IPv6 IP address, next to their current IPv4 address.