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Except that pop-up menus like that are positively ancient, when you consider that NeXTSTEP had them and it's latest release is dated 1995. Having it tied to a tap instead of a mouse click doesn't qualify, since in all windowing systems I know of that've supported pen or touch both mouse clicks and taps are implemented as button events on a pointer device. And Apple knows this, because they're familiar with the pointer interfaces in BSD Unix which underlies Apple's current generation of user interfaces.

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