Co-inventor Wayne Westerman said the MultiTouch system was much more flexible than a mouse which had a single moving point as its main method of input.

BBC: Handy future for gesture sensor

That changed when Apple added it as an option in the iPhone 4. (Previous iPhones lacked the oomph to crunch relevant data quickly enough to be practical.) Other examples include cameras and apps that stitch together panoramas from overlapping images shot in an arc around a single point or as a moving sequence.

ECONOMIST: Monitor

This AF array is well suited to a wide variety of shooting styles and disciplines, offering AF modes to let users select a single point, continuous AF, Dynamic AF or use 3D tracking to keep pace with a moving subject throughout the frame.

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