The toy department just got its game on with technology that transforms your smartphone into a remote control. This switch means you'll be able to guide helicopters into smoother swoops and swirls and to play augmented-reality games with friends.
Some 45 million Americans have a ready-made, near-universal remote control in their pockets. We already use smartphones to turn up home stereos, scroll through iTunes playlists, and pause Apple TVs. The devices’ built-in radios, such as Wi-Fi and Bluetooth, can also control toys.