I cannot even imagine how it would be to type on a "keyboard" without any physical keys. I for one love Apple products, but if they went the way of a touchscreen keyboard on laptops... I would be shopping elsewhere. I type at night in the dark a lot of the time. I want to feel the key and know if I mistyped by the feel of the key. Maybe it would grow on me, but right now I cannot imagine ever being able to type efficiently on such a device.

That being said, very nice informative post, thank you.