Bubble (Dot and Bubble)
From Tardis Wiki, the free Doctor Who reference
Bubbles were a way the residents of Finetime communicated with each other, projected from their Dot. Acting as a holographic interface, it surrounded the entirety of their field of view, obscuring the outside world. The interface appeared as a series of squares covering a sphere around the user's head, each square containing a video feed from another Bubble user. Users could control the interface with both physical gestures and voice commands. The interface also included live directional instructions, so users could walk without disabling the Bubble. (TV: Dot and Bubble [+]Loading...["Dot and Bubble (TV story)"])
