We've had a glimpse at Apple's conception of a sensor-based keyless layout, and the latest patent application from Cupertino shows the company looking to further refine the input experience -- this time using a camera and other sensors to detect hand position and overlay that hand position on a device's screen. The filing details three methods to this end. The first shows a user's hands on a traditional hardware keyboard projected in an on-screen representation (as background, Apple mentions the ergonomic strain of looking down to check y
