DLC question from a brand new 3DS owner

Can 3DS owners buy and download DLC yet? I haven't really heard anything about it except that I know Japan already can (no surprise there).

I'm just worried NA gamers won't have access to the boatloads of Theatrhythm DLC. The game doesn't come out until the beginning of July, so maybe by then they'll have it set up and ready to go (if it's not already)?

Not that I know of, but I live in the US and we get everything after everyone else does. We do get Spotpass and Streetpass, which is kinda like DLC, but as far as actual "DLC" there's nothing yet.