Mine was an early 09 bike, and I did NOT receive a letter from HD, although my tire started roaring at around 600 miles on it. At 4500 miles and a well defined tire tread chop, Richmond Harley Davidson mechanics, the head mechanic, the head service writer said "no problem with you bike, but it is making a weird noise". I said it is the tire, they said no way, its this, its that, its the other for over a week. In the end, they said it was the front tire afterall. Dumb a$$es. The replacement has over 1000 miles on it and so far its quiet. The rear tire is now roaring though. I've never had problems with the Dunlops they used on the 2006 Street Glide. I got over 20,000 on the front, and 14,000 quiet miles on the rear. The new improved tires are not so more improved than they are new.
I did get a letter on the fuel tank mounts, and had them replaced. No problems there, but then again I went to a different HD dealer this time(East Coast HD).