I received this items today with much anticipation, having seen it on the internet. Like my iPad, it is simple to use, yet elegant in design. No usb this, battery that, no wires, nothing. It is just an ingenious good idea that plugs a huge hole in an obvious Apple assumption-that people will just love to type on glass. People who have suction cups on their fingers will not need this; only people who hate typing on glass. I like the feel it gives me and I love the ease in which it can be removed. Hey, guess what? No marks on the iPad! What black art has engendered such a contraption? Thank you, oh wizard, from the bottom on my fingertips to the summit of my cerebral cortex!