As a computer vision researcher, I am impressed that Amazon has made the most computer-vision-centric mobile device seen to date. I have no idea if it will catch on, but having a dedicated physical button for object recognition is huge insofar as it means they actually intend for people to be using this all the time, so they'll only be devoting more and more energy to recognizing everything in the world. Sure, it's mostly so you can then buy those things from Amazon, but I have to think there will be other useful applications given the provided recognition SDK.<p>I'm also curious if developers will have direct access to the four corner cameras on the front, and if the head-tracking it uses for 3D visual effects includes detailed eye/pupil-tracking -- if it doesn't yet, you can be sure that's planned for the future.<p>Edit: So the dedicated recognition button will already pull up wikipedia entries for recognized works of art. I wonder if they'll ever let third party developers hook into the hardware button so that third party plant-recognition, insect-recognition, action-figure recognition (etc) app results can be called up with that single button push in case Amazon doesn't recognize a purchasable item.