With greater range. NFC has a practical range of about 4cm; iBeacon has a range of about 10-20m.
The marks you need to look for are Bluetooth Smart and Bluetooth Smart Ready. Bluetooth Smart is reserved for devices that only implement the BLE radio and this is what you'll see on things like FitBits, etc. The Bluetooth Smart Ready is reserved for devices that implement both Bluetooth Classic and BLE. The iPhone 4S+ is Smart Ready, Android 4.3 will be Smart Ready, etc.
Like I said, a complete branding disaster.
What's the solution to these expected failures in branding and their impact on us consumers?