One of the three major devices launched at today's Amazon event, the Kindle Touch is aimed firmly at the latest touchscreen Nook and Kobo devices. Like those readers, the new Kindle is based around an infrared touchscreen, in the place of a physical keyboard, making the device a good deal smaller than the Kindle 3. The touchscreen is fairly responsive, and the thing flips through pages quickly with a swipe or a tap, refreshing about