I have used ITUNES and have 4 AppleTVs deployed since they first became available . . . so long ago I forget when I deployed them. I have a lot of experience with the ITUNES business model.
I have had a mod2 Kindle for over a year.
The two business models are not really comparible.
ITUNES comes with a you buy it and that is it relationship. You download the file and if you loose it, too bad. You can buy it again but you are out of luck. You are responsible for managing your own data, have a nice day.
This has resulted in my investing in not one, not two but THREE windows home servers, and ITUNES host and migrating to 18 TB of spinning disk in what has become my home computer lab.
Dont get me wrong, I am ok with this but I have to say that the average buyer will probably not be madly in love with this business model.
Amazon has a totally different business model for the Kindle. You buy a book from them and THEY host it on their servers for you. You can down load it to your computer, your Kindle or your IPHONE and in future to your IPAD when you want to access the book, then you can delete it from your device.
Amazon maintains it for you. The 18 TB of spinning disk, backups, all the over head is handled by
Amazon.
I have built up an inventory of hundreds of books for my Kindle. I can read any of them any time I want and do. Then I "put them away".
When I buy another Kindle on my account, the entirty of my library is now available in similar manner to all of my Kindles. So the wife, the kids all can read any of my books when ever they wish. And if the wife buys a new book on my account, I can choose to read it now or a year from now without having to maintain a soft copy on my servers, and backing them up and . . . well you get the idea.
Now as to form factor. My Kindle2 has a display about the same size, look and utility as a printed page. The wife can and will read all day on a Kindle but can not say the same for a display. It gives her headaches. Also the Kindle formfactor makes it one handed while laying down friendly. Since I can change the font to large or small, I make it large for the wife and small for me.
I am buying the IPAD for me to use when I am in the bathtub and want to stream a TV show or check my email when a laptop is too heavy or too akward. The IPAD will clearly have a function to fill in my household, but not as a computer nor as an E reader.
I will stick with my Kindle and I know that my wife would refuse to even try to read a book on an IPAD. Gives me headaches dear.