The article is about the new Magic Trackpad, but the quote references design for touchscreen devices. Dave Caolo at 52 Tiger referenced it in an article on the difference between introducing new users to a touch interface versus a point-click interface. Both are excellent reads.
If the appropriate action is obvious to the user, the time actually required for that user to tap the proper spot on the screen is miniscule. Confusion about where to tap wastes far more time than an extra tap.


