Apologies for not wrapping this up sooner....

Those instructions worked and now pretty much all the devices on my home network are now working dual stack. I've also set up tunnelled ipv6 on my VPS host so my web site and ssh access is now also available on ipv6, hopefully linode will start offering native ipv6 at some point.

Have you watched RevK's presentation on ipv6 over at Linx?