the wii and ds both seem to use the same ticketing system when downloading dsiware, they have a personalized ticket so the game you download will run on your Dsi alone... with this being said if we could find the Dsi common key we could eventually "hack' the Dsi, tricking the Dsi into thinking the game was bought for your system, like what is done with the wii through dumped wiiware and VC games (wads) using wad manager, but more importantly if we could trick the Dsi into thinking you have the right ticket to copy the game to the sd card, we could eventually "copy" the TP hack, of course we would have to find an exploit in the Dsi, in DSI MODE ( not ds mode), but I believe eventually this could be done! Just think of the possibilites of homebrew on the Dsi with the cameras and sd card slot! no more dsi flash carts! lets just thank Nintendo that they gave us an sd card slot rather than 2 ds card slots (prototype)! feel free to share your thought on this matter by replying