I honestly don't know! I don't know of anyone who has tried Luna on an rMBP. I would encourage you to burn a copy of luna to a USB disk and boot into the live e

I honestly don't know! I don't know of anyone who has tried Luna on an rMBP. I would encourage you to burn a copy of luna to a USB disk and boot into the live environment. You can play around with it and see how it looks, with no changes to your hard drive. I'm sure other people with rMBPs will be trying Luna in the coming days, so hopefully we can assess what the current state of affairs is and make any necessary changes. Speaking on behalf of the whole elementary team, it would be greatly appreciated if you gave it a shot and reported your findings to us via Google+, Twitter, or via direct bug report here: https://bugs.launchpad.net/elementaryos https://bugs.launchpad.net/elementaryos You can use this guide to prepare the USB drive with Luna: http://www.maketecheasier.com/install-dual-boot-ubuntu-in-macbook-air/2012/08/27 http://www.maketecheasier.com/install-dual-boot-ubuntu-in-ma... The relevant steps are the first few. Obviously replace the filename of the Ubuntu ISO with the Luna one :) I personally used that guide this morning to create a bootable USB Luna liveCD with the final ISO to install it on my Macbook Air, so I can vouch for its credibility and compatibility.