For all the King fans, this article (and video interview) from Galleycat should be of interest.
According to the Guardian, the book took 25-years to write, as King struggled with the idea of a town sealed inside a mysterious force filed. The book has over 100 characters, a sweeping story like his epic novel, "The Stand." In a video interview earlier this year, GalleyCat spoke with King about Amazon's Kindle 2
Also other details have been released to Stephen King's official website: http://www.stephenking.com/news.html
EDIT: here's the original blog posting from TOR that Galleycat links from in the article: http://www.tor.com/index.php?option=...=blog&id=21794