It is awesome. There's a devoted fan. Heck he's even advertising a bit for the game. People are seeing how much people like their games. If I were a dev, or even one of the lowly programmers, I would send him a game with money out of my own pocket.
I wonder what they're going to do with all the caps though?
If a bottle cap is not worth at least 3 cents, the guy is not getting anything.
This marketing opportunity is just too perfect. Company would be frigging morons not to leverage this as much as they can. They should respond to his letter in similar fashion and give him a little extra something beyond the game. Social sites would eat it up and they would get a huge ROI for it.
*note this only applies to the original sender for his creativity and for creating the buzz, not the 5000 idiots that are going to follow suit trying for a free copy.