Microsoft's digital assistant arrives on Apple's platform - but only for those who've already signed up as beta testers.
Microsoft has begun assembling a team of testers before it makes the Cortana on iOS app available at the end of the year.
Psychologists have determined that it takes almost half a minute to regain full attention after issuing voice commands in a car.
Microsoft's voice assistant is secretly accessible on Xbox One - even though it isn't officially due until 2016.
Retailers like Best Buy, Macy's and Staples want you to receive discounts without ever leaving the Edge browser.