A mini CD would be cool. To hold say 40MB. They would be nice and small and maybe in a special case.
A bit like a small mini-disc. Largish screen and resolution (640x480). Good LCD screen with touch
screen maybe. It would be nice if it felt like a joypad and not a small box. With two analog sticks
and a few buttons including shoulder buttons. If it were using a decent processor to run some
version of OpenGL or Warp3D, it would be onto a winner. I think it would have to be DE compatible as
it would have access to some decent PDA specific games. All of this would easily beat a stupid
GameBoy Advance into the ground.