I hadn’t been aware of this until just today, probably because it happened on the other side of the Atlantic, but in recent weeks there’s been a bit of a furor over Amazon UK listing several e-books for only 20 pence each. It turns out, though, that this isn’t Amazon’s “fault”—Amazon is only pricematching Sony. Sony recently launched its own UK e-book store with 20 pence promotions on ten e-books, which will apparently change over time—including, oddly enough, titles from Macmillan, whose American branch was so concerned about Amazon’s $9.99 e-book prices eroding the value of e-books that it...