[drcongo]

I'd love to know what the advantages are over iCloud and Google Contacts, both of which sync all my contacts currently.

You guys could be in a good position to revolutionise this space by allowing me to manage my own contact information as it appears in other people's address books – so I can update my email address when I move jobs, update my phone number when I lose my iPhone etc. – and have this information automatically update in the address books of everyone I know. This, I would pay for.