Apple? Or Amazon?

Amazon needs to get over its Apple hate&switch. I can use a reasonably-capable iOS app to do anything in the Amazon store and I can use an iOS Amazon Kindle reader app to read my books…

But if I want to actually **give them money** for books, I’ll have to do it through yet another app.

Why not tweak the Kindle Reader app so I can just shop, select, purchase, and read in one place?