Nimbus stores your contacts in the cloud so you can access them from any phone. Those of your contacts that also use Nimbus will have your information (and you, theirs) updated automatically whenever it changes. We're launching soon, so as of yet I don't have any screenshots (sorry admin!) but sign up on our email list @ Nimbus - Your dynamic address book. to be notified when we launch! You can also follow us on twitter, @getNimbus thanks!