Sony launches 'Dot Switch' promo

Doing a classic Apple: bringing technologies together, yet keeping vague on details.  Sony have just released a short promotional trailer about what they're called the "Dot Switch."

In the demo, the user uses his Sony Xperia phone to activate various Sony technologies as he/she walks by them, including a gramophone (we're just as confused as you on that one), a Bravia TV set, a set of confetti cannons (again, confused), and finally a device that's revealed by a robot arm removing the tray cover.