Microsoft just killed Word Flow, one of the best iPhone keyboards

It’s been a well-known secret since iOS 9 that one of the best iPhone keyboards is made by one of Apple’s oldest competitors. But if you don’t already own a copy of Microsoft’s Word Flow, your window to buy one has closed.It was barely a year ago when Microsoft surprisingly released Word Flow, a free iOS version of its popular Windows Phone keyboard. Born out of its experimental Garage arm, Word Flow was built for one reason: speed. With swipe typing and a unique arched o