http://gbatemp.net/threads/3ds-decryption-key-generator.370630/
this is Team Fail`s release, that gets you the keys
apparently this new release in this thread here gets you the xorpad file (whether or not it uses Team Fail`s code or was written before that, I do not know...) / follow the instruction to acquire it, you still need a 4.5 3DS/XL to actually launch this release
and apparently XOR Tool can decrypt it and ctrtool extracts it...
is it usable to the average user? uhm no, I guess?
but it might just be the first real BIG step into fan translation apparently, since it enables rom decryption
still waiting for some big name to give his statement on this, but It looks realy promising :-)
it does say audio dumps ... omg mk7 rainbow road no kart sound