You're walking downtown with your friends, you feel a vibration on your hand and look down on the ring you're wearing on your hand to see the Caller ID of the person that is calling. It's another friend, but you decide to call them back later, you touch a button on your ring to silence the notification.
Another call comes in moments later and it's from a family member, you take the ring off, twist to the side and pop in in your ear since it's your Bluetooth headset.
Think it's far fetched? Think again... soon to release into production.
This was announced at the CES 2010 show.