 Even if Amazon can beat Apple and Google in the US, development of the competing products will advance unhindered because overseas sales dominate. Eventually Amazon is going to fall behind. And eventually Amazon has to make money here - they can't keep dividing up their profit margins as they are. And they're starting to lose their sales tax benefits - starting in a week they need to collect CA sales tax. That will immediately make my local stores the same price or cheaper than Amazon for most things.  I strongly doubt Amazon is going to beat Apple. But they have a very good chance of being the biggest Android tablet vendor, by a long shot.  