wont work with gateway....cyber gadget needs the save to be using valid 6.x encryption....gateway does not offer this........only thing i can think is if smealum does indeed get region free with ssspwn, you would be able to do it via that as long as your 3ds is on 6.x+OK, let's try here this is probably a better thread for it.
Question: If I get a Japanese Pokemon game (my 3ds is american) can I dump the ROM and play the .3dz on my Gateway? Is there any way to "start" a file on a cart if you can't run it on your 3ds? I want to try to conserve the sav and not have it get corrupted. (I obviously want to try the Cyber Gadget save editor but I don't want to buy a new 3DS for it...) I don't think Gateway will let me play a Japanese Pokemon cart so this is my only idea I have left, lol.
....actually assuming gateway release this promised update....i would imagine they could also get valid 6.x encryption thrown in at the same time....which would also solve it for you,
so to sum it up i would wait a few weeks before buying another 3ds, you have a potential solution from 2 places that don't involve buying another 3ds