Multi-function electronic payment card and device system

A payment device comprising:

• a thin card-shaped body having a security feature associated with a viewable surface of said thin card-shaped body;
• a memory;
• a payment issuer account information;
• a processor coupled to the memory;
• a payment interface, including at least one supported interface selected from a set of interfaces consisting of:
• a magnetic stripe interface, a smart card interface, an RF interface, an NFC interface, a display interface, and a wireless interface, and
• wherein the payment interface is operable to convey a payment information of a payment transaction, and comprises limited-use payment information,
• wherein further an authority in processing of payment transactions is operable to approve as valid a use of the limited-use payment information for payment transactions by an authorized user of said payment device at a limited set of supported payment facilities, and
• wherein said authority is operable to reject as invalid, a use of the limited-use payment information provided via the payment interface, in payment transactions not at supported payment facilities.

A payment card device comprising:

• a thin card-shaped body having a security feature associated with a viewable surface of said thin card-shaped body;
• a memory;
• a processor coupled to the memory;
• a near-field tag;
• and
• a payment facility interface, including at least one supported interface selected from a set of facility interfaces consisting of:
• a magnetic-stripe, a smart card reader interface, a display interface, an RF interface, an NFC interface, a wireless interface, a visible information fixed thereon said thin card-shaped body, and
• wherein an account identifying information for said payment card device is operable to be conveyable to a personal computing device by at least one interface selected from a set consisting of:
• the set of facility interfaces, and the near-field tag, and
• wherein a payment information for a payment transaction is operable to be conveyed via the payment facility interface, for payment transactions by said payment card device at a limited set of supported payment facility types, and
• wherein further the payment information is not valid for performing payment transactions not at supported payment facility types,
• wherein at least a portion of said payment information comprises limited-use numbers which are limited to valid use at supported payment facility types, and
• wherein said limited-use numbers are shared with a payment processing facility for recognition by said payment processing facility of valid usage within limitations upon a generation by the payment card device and a generation by said personal computing device, and
• wherein the payment processing facility rejects as invalid any use of said limited-use numbers obtained at any payment facility other than a payment facility receiving generated limited-use numbers at an expected payment facility.