from amazon are the most widely viewable you can watch and read amazons media on apple devices google devices amazons own kindle line and lots of other places like cheap streaming devices for your tv in contrast a book from apples ibookstore is probably never going to work on an android phone because apple really doesnt want you to buy an android phone so why bother with ibooksbet on connectors in our multidevice world amazons media store functions as what i like to call a connector it bridges the chasm between otherwise foreign technologiesthis gets to the most important principle for dealing with an uncertain future invest your time and money in connectors for instance store all your important documents on the cloudstorage service dropbox because its business model depends on it working everywhere and it does the documents you create on any single machine are replicated on all your other machines instantly similarly when someone hands you a business card you can snap a photo of it on the notetaking app evernote which also functions as a connector letting you get at your scribbles regardless of which machine you move to next and in a cloudy future who knows what that could be