2. I specify which of my contact details will be displayed on my public page, accessible to any internet user.
3. I create private pages, displaying contact details that will be accessible only to the people I want.
4. From my computer, my iphone or my SmartPhone, I need just one click to make one of my pages accessible to another user or group of users.
5. From my computer, my iphone or my Smartphone, the contact details of my friends are always up-to-date. No need any more to keep multiple contact lists up to date !