As of now i do know know any other than a laptop but i would not recomend ever playing a n64 game on a game boy sized screen just cause you wont be able to play properly or enjoy it much.
240 lines should be enough for most n64 games.. not sure which systems are powerful enough to run the recompilers & graphics etc though, n/m finding an emu for the OS
that's hilarious gent. i like the size, the missing buttons.. that it's not an emulator.. and i'm embarrased to say at a quick look i can't decide if it could work.. i think no