Microsoft’s Siri/Google Now counterpart is finally here. Built into Windows Phone 8.1, Cortana (named after her namesake in Halo) is what Microsoft calls the “first truly personal, personal assistant”.
She stands out from the competition with a more natural voice, people-based reminders, and a user customizable ‘Notebook’ where she stores your information. Oh, and she sings.
Have a look at the demo below for everything that’s new in Windows Phone 8.1 including Cortana.
The Surface Guide 