It is finally done, the Raspberry Pi (with no HDMI) portable MAME emulator based on the Raspberry Pi A+! Ben and Felix have put the finishing touches to the portable gaming device with the use of laser cutting and 3D printing. With 8 GPIO left though, Felix decides that it's best to do a low-level input for the buttons and directional pad to control the device. If you want to build one yourself, we've got the code and build files linked on the element14 Community!