wow, wild, have a look there - http://www.xinplay.net/thread-35615-1-1.html
using gateway 1.2 and that file you can take screenshots in game with X+Y
damn I want that but it's scary to try modified stuff on a downgraded 3DS. I probably won't go through with it...
But I really hope that the GW team implements screenshot support themself someday... That's really a feature I'd love to have, or even better, video recording...
What's surprising is, even that team couldn't crack that moflex format? What the heck? XD