Touch ID's next big trick may get thumbs wriggling

Touch ID, the fingerprint-sensing technology Apple ushered in with the iPhone 5S, has simplified the process of securely unlocking today's iPhones and iPads, but the Cupertino company wants to take the tech further.A new patent filing unearthed by Patently Apple reveals the firm's plans to add motion input to a Touch ID-enabled Home button — essentially, you'd be able to draw out a pin code to unlock your device without touching the screen.The diagrams accompanying Apple's filing show a user d