I am on board! Gonna send him a letter too!
Nothing against letters, but a Tweet to him personally or The Colbert Nation, or pinging their FB page might be more useful.
Both Twitter Account addresses can be found on the Colbert Nation Comedy Central Home Page
http://www.colbertnation.com/And as such I do not feel it is 'harassment' to tweet at him.
The Colbert Report is produced on a daily turnaround. It's immediate. If we can get their attention, and they can make it funny, it has a really good chance. I suggest mentioning Stephen's own Super Hero Super Spy; Tek Jansen. Also throw in something about how North Korea is part of the Axis of Evil. I know NC Soft isn't North Korean, but there is pretty much a running joke on the show about how fuzzy Stephen is about any geography outside of America.
Getting him to say something about the letter writing on Face Book or tweeting would be wonderful. He has a tremendously huge following. Getting him to mention it on his show would be even better, too much to hope for, but if we could pull it off it would certainly be something that Disney could not ignore.