This unit has a 3″ screen and the case measures 4.75″ x 6.75″ x 1.5″, which isn’t much bigger than the NOAC NESp I built last month. Only 1/2″ taller. I actually built this portable out of balsa wood because I thought it’d be an interesting thing to try. Well, that and engraving plastic of course.

Alas, I could not implement stereo sound into this one. It would have increased the difficulty too much. But I’ve added some other interesting features instead. For more details scope out the Project 42 page and scroll down to portable #4.