While we know that many of you, our readers, have precisely zero interest in Amazon's tablet hardware (and trust me, our analytics show as much!), the prospect of an Amazon smartphone should arouse curiosity even in the most fervent of Android loyalists. In part because, well, there haven't really been any major commercial smartphone launches for devices not running Android, iOS, BBOS, or Windows Phone in a long, long time. And the latter two are still far from major market forces at this point.