I happened to look at the new Pro, and the more I did I realized the base looked like that of the iMac G4. And how the new Mac Pro has a single fan at the top? So did the iMac G4. That's about as much as I can guess as of right now. You guys notice anything similar or from a past version Mac model? Oh, and the rMBP also has a feature brought back from the PowerBooks and non-unibody MacBook Pros. A full-size video port on the side! Just HDMI instead of DVI.