Here I bring you a quick port GNUBOY (emulator gameboy / gameboycolor) with support for SD. One of the first emulator to be added SD support. This version has support for loading roms from the SD card, but only load roms from SD to load roms from any other means using the latest version of gnuboydc. You must copy the directories gnuboy (for configuration) and gbroms (for the roms) in the root of the SD Card for the emulator to work properly.
There is a development version that will bring visual improvements including a completely revamped interface, but that will have to wait.
Meanwhile there you have a small gift from neoblasts