[guccimane]

Ah, I did not know that.

But anyway, just to clarify, I mention that these apps exist because it could completely throw off the numbers as to how many "Kindles" (or "Nooks") there are in a given city. What if SF has tons of people reading Kindle books on their iPads? These devices can't be considered pure competitors to the Kindle (or the Nook), and their numbers are way, way too big to simply disgregard.