A nnMP I could love

[Bubba Satori]

Nice, but I'd like something a little grittier,
like a Fallout case with an electrically opening vault door on the other side.

 

[h9826790]

Not sure how is powering the GPU Cards either, as looks like has fixed connection points for the additional power that they need. So unless all other future GPU's have there Power Connectors in exactly the same place then going to be a tad awkward to swap out for other cards. Standard PC Components certainly won't be giving you that so won't be using those ( presuming driver support and an EFI flash is available or are we presuming Apple goes for standard UEFI rather then it's own )

Also GPU Cards are mounted wrong way round.

I would say that looking at that the styling then would be pulling Air UP to the top of the System and out the top.
With the GPU mounting then would be taking the Air and blowing down. As the GPU Connectors are there as well then won't be expelling externally so would be pushing hot air out the bottom into the Case that then gets pulled up over the sides of the GPU Card and then some gets pulled in by the Cooling System to go through the Card again.

Needs some more thought beyond how it looks into some actual practical design work.

Agree that the GPU is mounted upside down, the exhaust should facing upward for the hot air to get out.

May be you just hit the nail. Power the GPU is easy, just make the 6 (or 8) pin connector like the door's dead bolt. Then it can keep everything cableless, and effectively lock the card into position.

And guess what? This can also preventing the user to upgrade GPU by themselves, because the power connectors won't fit. Sounds like a very Apple design. And only Apple GPU (if any) that can fit inside that slot.