As we noted last week, Apple has adopted new Bluetooth 4.0 chips in their latest MacBook Airs and Mac Minis.



From MacRumors:

Bluetooth 4.0 notably includes the Bluetooth Low Energy specification which promises a low-power and low-latency implementation that opens the door to a number of new kinds of Bluetooth-powered devices.

The best example of what will be possible comes from Apple's popular Nike+ accessory which isn't actually a Bluetooth Low Energy device. The Nike+ accessory is a sensor that sends signals from your shoe to your iOS device to track your daily runs. The information is sent from the sensor wirelessly to your iOS device where it's stored for later syncing. Nike's implementation is a proprietary one, though it is similar to Bluetooth.

  Apple's Adoption of Bluetooth Low Energy Paves Way for New Possibilities