Has any tried upgrading there Linode Gentoo to OpenRC yet? Did you have any difficulties such as dealing with config files that were modified to run with Xen / Linode?

I tried the upgrade on one of my two boxes at home. I had some difficulty because I had never run dispatch-conf before. Just as a warning you don't want to learn dispatch-conf during a critical upgrade, learn it when you are using a package that can be removed completely and not a package that will make the system unbootable if removed. Long story short, I learned how to use dispatch-conf the hard way. NOW I hove setup dispatch-conf to use RCS backups on my two home boxes and my Linode.

I updated it as soon as it went stable on amd64 and don't recall any significant issues on linode vs. hardware installs.