It looks neat but its not really feasible is it? Roll up screens are sorta possible with oleds but how would it stay up and stay straight would be a big problem all on its own.
Hmmm is a nice design i should say.. It looks cool. For what think is hard to hit into get market as the screen can be easily damage or so.
I remember when I was younger the Gameboy color and what a hit it was. The PSP is sooooo much better than the gameboy ever was and beats the Nintendo DS in my opinion by a long ways.
If that was real and in production, that'd be amazing! No bulk at all, since it rolls up like a newspaper.