I have the old SD GBA movie player, and somewhat recently it got a firmware update that let it work with passme devices, so long as its one of the newer ones that doesnt requre the slot 2 device to have its own ram. And now the GBAMP reportedly has its own DLDI patch. So I spoted that the superkey is quite cheap at jandaman, coming in at under $20 shipped. I also eventualy plan to get the SD Supercard, for the gba compatiblity.
So if I pull the trigger on the superkey, before the supercard, what kind of compatibility should I expect, both hombrew, and commertial?
(Oh, and I understand the ulimate soulution is both slot 1 and 2 flash cards at the same time, but I'm tight on funds.)