Once you unlock your phone you can insert almost any SIM card you want (the iPhone3 and 4 series take a different size SIM so be careful), foreign or domestic, prepaid or not.

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Simply insert the SIM from your current phone into iPhone 3G and connect to iTunes 8 to complete activation.

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While you can always insert a local SIM card into your phone for use when you are in port, this will not help you if you are on a cruise ship at sea and out of range of a local carrier.

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On Wednesday the telecom giant announced a new encryption option for its enterprise smartphone users, allowing them to insert a chip from its partner company KoolSpan into a phone and encrypt the voice traffic to prevent wiretaps.

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The article reports that a company called Square has created a credit card reader that you can insert into the headphone jack of your iPhone, iPad, iPod Touch or Android phone.

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For instance, the keyboard offers several handy tricks -- type "ld" to automatically insert today's date, "mypin" for the device PIN, "mynumber" for your phone number and so on.

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