I blogged about Kindlegraph the new technology that allows an author to provide a fan/purchaser with an autographed salutation/inscription for their ebook. The Kindlegraph went viral when authors like J.A. Konrath signed on. An upgraded version is now available.
If you're interested in reading about the additions to the technology, Emily Hill has an article at Self-Publishing Review, Kindlegraph is the Newest Bestseller Among IndiePub Authors.
Panzer wants to know if you've signed up yet? He likes to collect autographs almost as much as kitty treats, you know.