My book is going Kindle exclusive next week. If you are an iTunes (iPad or iPhone) or Nook owner, you are going to want to buy the book this week, before it gets pulled.
Amazon offers a KDP service that helps indie authors, and I am going to take advantage of it. Still trying to afford that computer, and my sales have been BRUTAL in September.
Make sure you get it this week. Its still just $3.99, and it will be January before you can pick it up through those retailers.