We'd heard rumors that Swiftkey might have assisted Blackberry on its well-received (and often prescient) BB10 keyboard, but the app maker has now confirmed that its software is behind the Galaxy S 4's native keyboard. It's the first time that the company's publicly admitted to powering a handset manufacturer's keys and will sidestep the need for S 4 users to download its standalone app. Swiftkey's CTO Ben Medlock said that the keyboard is "at the hea