when Facebook "helpfully" hoovers up all your Hotmail/Yahoo/Gmail contacts data it also hoovers up their associated phone numbers ?
What a wonderful marketing database they could sell there. *You* may have never given your mobile number to a company. But your friend who had it in their contacts list just has.
Why has nobody managed to explain to me how Facebook (and LinkedIn) can somehow circumvent the strict warning Hotmail et al have on NOT GIVING YOUR LOGIN DETAILS TO ANYONE ?