I agree. Today I ordered a book b/c I like to have a hard copy every now and then especially when reading material I am studying. I almost expected there would be an option to own the kindle version. Did I miss it? If it isn't there please add this functionality. I am flying tomorrow and would really like to read the book, even if it was temporary, i.e. checking out a book from the library? Everybody used to go to the library. :-)
Keep up the great work Amazonians.
(I have the iPhone Kindle app and not the official Kindle)
Both paper and kindle versions have their own advantages and disadvantages so I have a hard time in determining which format I should get. If I already purchased "the book", it would make sense to have the kindle version for free, or for a minimal amount of money, for the service provided by amazon.
I also agree that when you buy both the book and the kindle version you should get a discount at least. But I see that from amazons point a view that might not be a good thing. My suggestion is to make it possible to return de kindle version and get your money back if you also bought the book.