I had iWorks on my 2010 MBP via CD. What's the best way to transfer that to my new rMBP? (please no, "you should have got a laptop with a CD drive spam please). I had assumed that it would have been "linked" with the App Store by now so I could download that way, but it isn't. Is there a way to do that? Or do I need to share the CD and install it that way?