A new leaked video appears to show off Microsoft's coming personal digital assistant, codenamed 'Cortana,' in action.



From All About Microsoft:

One of the main new features of Windows Phone 8.1 -- the personal digital assistant codenamed "Cortana" -- has made a brief, unofficial video debut.

The UnleashThePhones.com site posted a 2-plus-minute video clip to YouTube showing what seems to be Cortana in action. Though the "speaking voice" of Cortana isn't revealed, a few new tidbits are.

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