They mailed Nathaniel a care package filled with all kinds of Halo/Bungie related goodies. Here's a list of what he got from the House of Halo...
Legendary Edition Helmet signed by most, if not all, of Bungie
Halo 3 Soundtrack (two disc) signed by Marty O'Donnel
Bungie Jacket
Bungie T-Shirt
Halo 3 Messenger Bag
Two Halo 3 Limited Edition Wireless Controllers (both versions)
Halo 3 Faceplate and Skins for Xbox 360
Four McFarlane Action Figures
Halo Actionclix Preview pack
Halo Actionclix Game Pack 4
Halo 3 Wall Graffix
Halo 3: Ghosts of Onyx Novel
Halo Graphic Novel
Halo 3 Wristband
Halo 3 Hackeysack
In addition Nathaniel has heard from John Porcaro at Microsoft who apologized about the situation and promised that they will get him something just as awesome as his signed 360. As of right now, he has not received anything from Microsoft.
In the last article I posted about this, there was some question from the commenters about whether or not this story was fake. Well, you're wrong, because it most definitely is real. Nathaniel's friends and the people that have signed this 360 have come forward confirmed it. So yup, they really did erase what was on his 360.