Here is one petty gripe while comparing the two reading experiences. The Kindle For Android app shifts blocks of text to the left or right with a finger tap. Nook For Android gives the reader a little animation of a page -- as a sheaf of paper -- turning. I find this aspect of the Nook's app mildly annoying. After all, I read ebooks because I want cheap access to written content, not because I want to "feel good!" about reading. If I wanted the comfort of seeing a real page being turned, I would go to my bookshelf and pluck out a volume of a real book -- one with pages made from tree pulp.