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I wonder if this has something to do with "zooming" capabilities. Samsung's Galaxies already nail it and are a head and shoulder above the competition (e.g., iPhone). When there's not much room for innovation in an area, create a new need and compete there!

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That was my thought too. It seems like it could provide all the benefits that we get with multiple individual lenses for telephoto, wide-angle, etc in a single lens and sensor. Probably reduces cost overall.

I doubt it. For a small sensor, crops are probably going to look like crap, unless they've got some computational photography magic to make those pixels actually count.

It doesn’t have to look great if you are after functional results - identify faces, read some text, etc

Good point on that, as a potential motivation for more pixels.

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