a) An identity detail card for each record, with few extra buttons for phone call, QR code, email and address location information.
b) Navigate through your contact book to generate a QR (Quick Response) code of any contact for your friends to scan and save through your phone. You can also email QR code and contact information in mail to buzz your friend who request a contact.
a) Alert notification on expiring identity (i.e. driving license).
b) NFC support? Probably if Identivity has reached the expectation.
* Identivity is an ads free app after user login with his/her passcode.