Exactly. Want to hide that tag? You have to register as a user. And, some of your friends hit OK and lets the FB app upload their address book with your contac

Exactly. Want to hide that tag? You have to register as a user. And, some of your friends hit OK and lets the FB app upload their address book with your contact info in it. I presume that's how they managed to mine my unlisted cell phone number and suggested it ti me.