It should cover it - it's the same part number as in the Apple store, apparently the Canadian one but it should work wherever you are. The one for the 13" says it's for the 13", for the 15" and up models it says just "MacBook Pro".Well, why doesn't someone message the seller and see if it covers the RMBPs?
I want to hear if Sir Al got it working.
But in case you haven't seen my signature, I can't try out the AppleCare yet as I haven't gotten my rMBP - I'm still waiting for it to arrive, I believe I need the serial number to activate it. Maybe I could call Apple and they can tell me what serial number my computer that they shipped is? Or can I activate AppleCare without the serial number?
For those who want to be 100% sure, you can wait until I try it on my rMBP when the machine arrives. But I'm not sure when the posting will end, I'm surprised it's still up, it's been several weeks.