Here is a video that somebody made on their own design for a new ds.

I would have to buy a new ds if something similar to this came out. That is such a nice idea to fold it. The only problem I would have is the top screen breaking.

The top is way too easy to break, that could never work. What game is it that is on the screen? It looks like FE to me.

 I agree. There are ways though to make it stronger. 

A bit too much movable parts. That means: will not stand much time.

Also, that's not elegant or stylish at all.

Not very elegant or stylish, and having the buttons perpetually on the outside would suck. Also, the button parts of the DS would be hollow when slid it open; that would get really annoying.

Yeah after looking at it closely the touch screen is too indented. I think it could be made stylish though. If they worked at the design hard enough.

that DS would break really fast,

it's also extremely thick - as somebody said it's got way too many moving parts, I like my DS's like my women simple yet attractive.

I've seen this video before. Everything the people said above explain's my take on it, especially the women.

Too fragile