I'm only assuming this would be possible, assuming that AR/GG support is possible, I guess it would work in a similar way...
How about soft-reset so users can use a button combination to return to the SNES-Myth menu without having to power off+on the SENS each time.
Also, if possible, a 'real time save' option, where the soft-reset function would take you to a small menu, allowing the user to save their progress to a file, or maybe apply a cheat or something.