Friends Contact List

How about an option that when you bring up the page showing the list of all your friends, you can chose to show your friends' contact details (i.e. mobile phone numbers, e-mail addresses, etc.) alongside their name and photo?

Then, at any moment in time, if you wanted to you could print off the list of your friends and keep a back-up of their contact details? Or, the list could update itself and let you know when a friend has changed their e-mail address? It would make a great reference to look up if your mobile phone got stolen and you had to reprogramme everyone's number into your new phone.

In some ways it might sound a bit spooky, but you're friends with them anyway so it might be a useful feature. Rather than going into each friend's profile and finding their contact information to write in your address book, it will all be in one easy reference. And if you don't want a particular friend to see your e-mail address, for instance, you could add them to your limited profile list and sort if that way so it is not displayed in the list.

How about it?