Mobile wireless communications device providing selective image display based upon near field communication (NFC) and related methods

1. A mobile wireless communications device comprising:

a portable housing having a front exterior surface and a rear exterior surface;

wireless transceiver circuitry carried by said portable housing;

a first active display carried by said front exterior surface of the portable housing;

a processor carried by said portable housing and coupled to said wireless transceiver circuitry and said first display;

a second passive display carried by either the front or rear surface of the portable housing and comprising an array of pixels, each pixel retaining a given state between refreshes and without electrical power supplied thereto; and

a near-field communications (NFC) device connected to and powering said second passive display to display an image thereon based upon NFC communications.

2. The mobile wireless communications device of claim 1 , wherein said NFC device and said second display are configured to be powered by a field received by said NFC device.

3. The mobile wireless communications device of claim 1 , further comprising a power source carried by said portable housing and coupled to said NFC device.

4. The mobile wireless communications device of claim 1 , further comprising a substrate supporting said second display and said NFC device; and an adhesive layer securing said substrate to said portable housing.

5. The mobile wireless communications device of claim 1 , wherein said rear exterior surface carries said second display.

6. The mobile wireless communication device of claim 1 , further comprising a position determining device carried by said portable housing and configured to change the image on said second display based upon a determined geographic position.

7. The mobile wireless communication device of claim 1 , further comprising a timer carried by said portable housing and configured to change the image on said second display based upon time.

8. The mobile wireless communications device of claim 1 , wherein said NFC device is configured to transmit an image-related NFC communication to another NFC device.

9. The mobile wireless communications device of claim 1 , wherein said second display comprises a color display.

10. A communications system comprising:

a near field communication (NFC) terminal; and

at least one mobile wireless communications device comprising

a portable housing,

wireless transceiver circuitry carried by said portable housing,

a first active display carried by said front exterior surface of the portable housing,

a processor carried by said portable housing and coupled to said wireless transceiver circuitry and said first display,

a second passive display carried by either the front or rear surface of the portable housing and comprising an array of pixels, each pixel retaining a given state between refreshes and without electrical power supplied thereto, and

an NFC device connected to and powering said second passive display to display an image thereon based upon NFC communications with said NFC terminal.

11. The communications system of claim 10 , wherein said NFC device and said second display are configured to be powered by a field received by said NFC device from said NEC terminal.

12. The communications system of claim 10 , wherein said at least one mobile wireless communications device comprises a power source carried by said portable housing and coupled to said NFC device.

13. The communications system of claim 10 , wherein said NFC device and said NFC terminal are configured to communicate the image therebetween.

14. The communications system of claim 10 , wherein said at least one wireless communications device comprises a plurality of wireless communications devices; and wherein said NFC terminal and said plurality of mobile wireless communications devices are configured to communicate the image therebetween.

15. A communications method for a mobile wireless communications device comprising a portable housing having a front exterior surface and a rear exterior surface, wireless transceiver circuitry carried by the portable housing, a first active display carried by the front exterior surface of the portable housing, a processor carried by the portable housing and coupled to the wireless transceiver circuitry and the first display, a second passive display carried by either the front or rear surface of the portable housing and comprising an array of pixels, each pixel retaining a given state between refreshes and without electrical power supplied thereto, and a near-field communications (NFC) device connected to and powering the second passive display, the method comprising:

receiving NFC communications at the NFC device and displaying an image on the second display based upon the NFC communications.

16. The method of claim 15 , further comprising receiving a field at the NFC device to power the NFC device and the second display.

17. The method of claim 15 , further comprising receiving power from a power source carried by the housing and coupled to the NFC device to power the NFC device and the second display.

18. The method of claim 15 , further comprising determining a position based upon a positioning determining device and changing the image on the second display based upon the position.

19. The method of claim 15 , further comprising determining a time based upon a timer and changing the image on the second display based upon the time.

20. The method of claim 15 , further comprising transmitting another NFC communications relating to the image to another NFC device.