Quite a few other things have changed between Jot Script and Jot Touch. But if the power’s off, it goes completely unrecognized by the screen. So long as it’s on, indicated by a small bar-shaped light found close to its center, it will interact with any iOS user interface element just like other styluses. Jot Script apparently sends out a light electrical pulse that is recognized by the iPad as a capacitive input, and also uses an integrated accelerometer to detect the stylus’s angle and coordinates. As it turns out, Adonit had to use some cool engineering tricks to enable its new 1.9mm “Pixelpoint” tip to work, given that its slight, pen tip-like physical size wouldn’t normally register as “finger-like” by an iPad’s touch display.
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