There are quite a few activities planned this year to celebrate the 75th anniversary of the Smokies as a park. To find all the information on the anniversary, click on www.greatsmokies75th.org. Here is a great article on the celebration as well at http://www.thesmokymountaintimes.com/articles/2009/02/19/news/news03.txt .
If you are planning on visiting for the official 75th weekend in June, you might want to reserve a place now. It sounds like it will be lots of fun, and I would imagine the area will be packed.