Enabling IPv6 on EC2

I've actually been using IPv6 on and off since the late 1990s - there was an addon for Solaris 2.6 that we installed on a bunch of test machines. It worked great, but wasn't something we ever did properly in production because at the time none of our customers had IPv6. I've wanted to use IPv6 more, but my home ISP has never had it. Until recently, when I noticed my main machine (running Tribblix,…