You'll find, if you dig far enough, that almost all of the big 'killer' UI features on smartphones originated elsewhere.
This is kind of Apple's whole thing, though.
The idea of a mouse, having tiled windows on a desktop, a few other ideas... All came from Xerox's teams. They gave Jobs a tour and showed him what they were working on and Apple put all those ideas into their "made for the home" computers.
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This is kind of Apple's whole thing, though.
The idea of a mouse, having tiled windows on a desktop, a few other ideas... All came from Xerox's teams. They gave Jobs a tour and showed him what they were working on and Apple put all those ideas into their "made for the home" computers.