It reminds me of GCN actually. More the controller than the console, but both seemed too much like a child's toy to see mass appeal as far as I was concerned, even though I didn't mind it since it was unique.
The PS5 dev kit looks kind of like a child's toy, or at least has that vibe to me. I would expect the closest consumer type design from PS to look something like this instead, which I wouldn't mind at all. The digital display is a bit much, but otherwise it's close to something I could actually see sitting on store shelves.
And no, a PS4/Pro design with a 5 stack for PS5 is absolutely unacceptable. Pro is borderline with 3 already.
I actually like the dev kit design better.
Not only the huge display, but the added curve inside the V... feels really strange.
And they used a Greatest Hits PS2 disc in the presentation, eww, they clearly have no taste!
Also, stacking is love. Here:
This is the future!
The dev kit isn't horrible, it's ok, and the color change and separation definitely helps, but I just don't see that design having the mass appeal that a more squared off box will. I felt they were pushing it with just the angle on PS4, so to see them go with something quite similar to the dev kit would be unexpected.
The concept design in the vid I believe would have a large fan in the middle where the curved portion is, which is why it has the holes there. The huge display is over the top, and while a much smaller display could be something they try to see how gamers react based on it's usefulness, I would still figure a display unlikely, especially with the talk of a revamped UI that's much more efficient and intuitive.
I don't know about you but I'm not giving up a hand to stabilize the thing. It would be a reason to include the optional stand as standard though.
By the way, with all the Roman hints coming out, should we potentially apply this to the console design? OMG.