I know questions like this are probably just as tiresome as the "N64/GBA emulator for DS? lolololol", yet after some searching on google I haven't been able to figure out what is it exactly that's preventing hackers from exploiting the DSi specific features and power. If it's just not possible, that's fine, but I've just been curious since the advent of the PS Jailbreak, something thought to be pretty much impossible for the PS3 till recently.