I just put my mid 2012 cMBP on ebay and once it sells I'll be picking up the 15 inch rMBP. I had a zagg on my cMBP and I really liked it and is in mint condition because of this. I also had a moshi keygard which I will be getting. So I want to have this stuff ordered prior to the new baby arriving. My question is has the rMBP changed in size or layout in any way? Thanks for your time.