Personally, I am not a fan of the on-screen keyboard design, I think Apple could come up with something better than that, but I like the black finish on the back even though they'd probably offer ...

Display circuitry either borders the transparent screen, masked from view with opaque paint, or located in another portion of the device chassis. As with other augmented reality systems ...

The most attractive, perhaps, is this image posted by kontheur: This image shows a mockup of what a thin MacBook might look ... and rotating images on display screen." ...