The Ace3DS Team have posted news and a video that says they have a flash cart fully working on the 3DS which plays all DS Games and Homebrew and One Genuine 3DS Game, sounds curious, from what i can gather its not a full hack of the 3DS but maybe a sneaky way of keeping DS Compatability on the 3DS via a genuine game. First off they play a DS Game then a 3DS Game via a little switch.