Ah, cool, it's fun seeing things translated that I couldn't find. I'll make it into a patch for you tomorrow, since the legality of directly giving people that file is debateable. (It's the game's script, which is a copyrighted work.) I'll include the image patches I already did if you don't mind, all in an xdelta patch.
I still want to go and fix a few of the images too, but that's for whenever I get a mouse for this computer. And translate the endless game in game image stuff, for the score and what not.
Other than that, there isn't much else there is to do that isn't covered already or is some image editing I have no idea how to do properly. But that stuff is mostly obvious, or already basically covered by other text before, with, or after it so I'm not going to try anything fancu unless I figure out ho to do it with the images.
As for the official US release, Nintendo is actively working on it but I feel they're delaying the release since they'e already packed their schedule up fir the rest of the year. So I wouldn't expect it until 2012 at least.
And if anyone does have a completely perfect file (Which would be necessary for all the Game Notes to be unlocked as far as I can tell) and doesn't want to post it publicly, send it my way too. Note for the notes really, just for the Endless Remix.