Google has announced that the code for Project Gameface, its hands-free gaming ‘mouse’ that you control by making faces, is now available open-source to Android developers on Tuesday.Developers can now integrate the accessibility feature into their apps, allowing users to control the cursor with facial gestures or by moving their heads. For example, they can open their mouth to move the cursor or raise their eyebrows to click and drag.Announced during last year’s Google I/O for desktop, Project ...