So, that thing supports dumping and writing back saves? How about a Link between Worlds? I'd love to continue playing in Gateway mode, but my save is on my original cartridge so I'm bound to official Firmware, since it uses the official keys from 6.x if I'm not mistaken. Can I dump my save in official Firmware and write it back in EmuNAND? *)
I'd assume that thing has to be able to de- and encrypt saves when it's able to change values, so it doesn't sound far fetched to me that it's able to re-encrypt a save with the Firmware keys when it's writing it back to the cartridge. And to go a bit farther, if we have the saves as files we should be able to use them for Gateway, shouldn't we? I mean, who likes carrying around carts wehn we could have all our games on micro SD?
*) Just to avoid misunderstandings, my 3DS is modded and I can switch between Firmwares as I please.