“…Direct interaction with content across devices has been supported through drag-and-drop proxy icon portals [64,123,206], pressurebased press-and-flick techniques [223], pinch-to-zoom across multiple displays [206], or drag-and-pop and drag-and-pick techniques for multi-screen environments [15]. Around-thedevice interactions are predominately based on interactive surfaces (like PhoneTouch [294] or ActivitySpace [143]), or projection systems that extend the interaction space to visual proxies next to a device [311], extended projected displays [57], touch-enabled surfaces around the device [362], or even augmented mouse, touch, and keyboard input [23].…”