I can definitely see where you're coming from but I think your solution is too complex. Right now I have a contact list of over 100 friends built up on Knok.Me with all of them maintaining their own contact info. People update their info and new friends join on a weekly basis. Its working for me and my close friends. When we release the mobile app we hope to reach more people. You could be right, but only time can tell. Thanks for your feedback!