Maybe this is obvious but it might help someone else with the same issue. When ever i went to go.gateway-3ds.com my console would just freeze. I tried using a 32GB sd card but it wouldn't work and then I tried my original 2GB card and it worked the first time.
Well i'm not too impressed by the build quality either. It's very hard to remove my r4i from the 3DS. And i also had problem to get the 3DS to recognize the r4i (the white card).
if they get permission from 4j (the studio who helped put minecraft on consoles), they could put the console edition tutorial worlds in the game, as seeds
and i mean all of them (if not, maybe a few highlights, like TU1, TU31, and TU69)