Yikes.... too small for my liking. To me Advance SP was already
the optimum size.
Gameboy is just like handphone.... of course you don't want it to
be brick-sized, but at the same time, it has to be large enough to
snugly fit in your hands without causing discomfort.
Also, with a really small screen, I can expect to do a lot of
squinting work.... either that, or I keep dying at the hands of the
aliens on the screen. 
