It is hardwired to my certral nervous system.  I just think "call Dad", and my mind dials him up.  A small implant allows my voice to be transmitted back to the Blackberry.  I know I look weird, walking down the street, talking to apparently nobody.  It gets downright freaky when I call my pastor for spiritual guidance.  Especially on laundry day when I'm wearing my old, torn-up Levis and paint-splattered Led Zeppelin t-shirt, while my good clothes are on spin cycle.