I've been going back and forth between a Nexus 7 and an Ipad mini retina. I have an Apple Macbook Pro and an Ipod, and currently a Motox. I like Android and IOS/OSX. I just ordered a Nexus 7 today and am pretty excited but I'm getting concerned because I'm reading that you can't view content purchased from the Amazon and Nook apps on the Nexus 7, and that Google wants to make it difficult to do so because they only want people using content from the Play store. Is this true?