The iPhone's Untapped Potential - Kate Greene, Technology Review

Apple could do a lot more with all the sensors in the iPhone. Apple is known for its innovative gadget design, and with the release of the iPhone today, it continues to live up to its hype. But while people are fawning over features like the smart, multitouch screen and the advanced Web browser, there is important technology under the hood that will likely go underappreciated. The iPhone has tiny, powerful sensors--an accelerometer, an ambient light sensor, and an infrared sensor--that are able to pick up cues from the environment and adjust the phone's functions accordingly. Apple has decided to use these sensors for detecting when to convert the screen view from portrait to landscape, for adjusting the brightness of the screen based on the brightness of the environment, and for disabling the touch screen when a person holds the phone to her ear.

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