Carrying a mobile phone? Then someone could be tracking your every movement and know where you are. Big Brother? Perhaps, but it could just be a Mexican restaurant wanting to invite you in for dinner.
Your mobile phone says a lot about you.

The type of handset you own, the fascia you choose for it, the ringtone, even how quickly you answer it are good clues to how you think of yourself.

But soon your mobile phone could be saying a lot more about you and your lifestyle as handsets evolve into devices that know where they are and share this information with almost anyone that wants to know it.

More here.