40 iPhone tips and tricks everyone should know

Customers wait in line prior to the initial sales of the new iPhone 4S at Apple's retail store in downtown Shanghai on January 13, 2012. New owners have a whole lot of tricks to learn. Here's a list of our 20 favorites. Carlos Barria/REUTERS

With hundreds of iPhone features and 500,000 iOS apps, it's easy to miss some of Apple's best tricks. Here are 40 of our favorite.

1. Don't call me Shirley!

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    With the help of Wolfram Alpha, Siri can identify what flights are overhead.
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Ever see a plane in the sky and wonder where it's headed? Siri knows. As the result of a partnership with Wolfram Alpha, an online search engine, Siri can identify what planes are nearby (just remember to first turn on Location Services in the Settings app).

Ask Siri: “What flights are overhead?"

You might not be able to get out of the freezing cold and onto a beach, but you can make believe that you’re on that American Airlines flight to Honolulu.

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