Just to clear it up... one more time...
Go to http://hackmii.com/2008/07/dear-nintendo/
There you will hear it straight from the horses mouth.
Comment #1 is this fake letter, that this article thought was the one he meant.
Comment #12 is the reference to the real response, which will be kept private.
In conclusion,
1. Letter fake.
2. Story real.
I would cite regulation, but I know you will simply ignore it.