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The implication in the article is that it turns on the Bluetooth or WiFi chip and sends the data. The radios are off to begin with, but the software turns them on.

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Still cant see apple approving that. I also don't think sandboxed and non jail broken apps can modify hardware power states.

The article states they they have to be powered up, so airplane mode is still a no-go.

WiFi works in Airplane mode on iOS.

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