My problem with downloading the free Kindle books is by not being able to delete the entire book, I don't know which ones I've read. How does everyone record their read books? I do love having a book to read on my phone. It's great for when I'm lying down and also when I'm waiting in the car or for doctor appointments, etc. I don't have much memory on my free iPhone so it is good that you can "remove from device" to the cloud but it seems to me once you've read it you don't need it there any more.