Mobile wireless communications device providing near field communication (NFC) unlock and tag data change features and related methods

1. A mobile wireless communications device comprising:

a near field communication (NFC) transceiver, an input device, a geo-position determining device; and a controller coupled with said input device, said geo-position determining device, and said NFC transceiver and configured to:

receive tag data from at least one NFC tag when in close proximity thereto via the NFC transceiver, the tag data including a geo-position of the at least one NFC tag;

verify the tag data, and when the tag data is successfully verified and the mobile wireless communications device is within a threshold distance of the geo-position of the at least one NFC tag, perform at least one device unlock operation,

determine whether the tag data should be changed based on a predetermined schedule, the predetermined schedule being changeable with said input device; and

when it is determined that the tag data should be changed, communicate with the at least one NFC tag to change the tag data.

2. The mobile wireless communications device of claim 1 wherein the predetermined schedule is based upon a number of device unlock operations since the tag data was last changed.

3. The mobile wireless communications device of claim 1 wherein the predetermined schedule is based upon a passage of time since the tag data was last changed.

4. The mobile wireless communications device of claim 1 further comprising a memory coupled with said controller and configured to store office data; and wherein the at least one device unlock operation comprises unlocking access to the office data in said memory.

5. The mobile wireless communications device of claim 1 further comprising a memory coupled with said controller and configured to store home data; and wherein the at least one device unlock operation comprises unlocking access to the home data in said memory.

6. The mobile wireless communications device of claim 1 wherein said controller is configured to change the tag data based upon an encryption key.

7. The mobile wireless communications device of claim 1 wherein said controller is configured to change the tag data based upon a message authentication key.

8. The mobile wireless communications device of claim 1 wherein said controller is further configured to change the tag data based upon said input device.

9. The mobile wireless communications device of claim 1 wherein the at least one NFC tag comprises a plurality of NFC tags each having respective tag data associated therewith; and wherein said controller performs the at least one device unlock operation based upon a sequence in which the respective tag data is received.

10. A method for using a mobile wireless communications device comprising a near field communication (NFC) transceiver and a geo-position determining device, the method comprising:

receiving tag data from at least one NFC tag when in close proximity thereto via the NFC transceiver, the tag data including a geo-position of the at least one NFC tag;

verifying the tag data, and when the tag data is successfully verified and the mobile wireless communications device is within a threshold distance of the geo-position of the at least one NFC tag, performing at least one device unlock operation;

determining whether the tag data should be changed based on a predetermined schedule, the predetermined schedule being changeable with an input device of said mobile wireless communications device; and

when it is determined that the tag data should be changed, communicating with the at least one NFC tag to change the tag data.

11. The method of claim 10 wherein the predetermined schedule is based upon a number of device unlock operations since the tag data was last changed.

12. The method of claim 10 wherein the predetermined schedule is based upon a passage of time since the tag data was last changed.

13. The method of claim 10 wherein the mobile wireless communications device further comprises a memory configured to store office data;

and wherein the at least one device unlock operation comprises unlocking access to the office data in the memory.

14. The method of claim 10 wherein the mobile wireless communications device further comprises a memory configured to store home data; and wherein the at least one device unlock operation comprises unlocking access to the home data in the memory.

15. A non-transitory computer-readable medium for a mobile wireless communications device comprising a near field communication (NFC) transceiver and a geo-position determining device, the non-transitory computer-readable medium having computer-executable instructions for causing the mobile wireless communications device to:

receive tag data from at least one NFC tag when in close proximity thereto via the NFC transceiver, the tag data including a geo-position of the at least one NFC tag;

verify the tag data, and when the tag data is successfully verified and the mobile wireless communications device is within a threshold distance of the geo-position of the at least one NFC tag, perform at least one device unlock operation;

determine whether the tag data should be changed based on a predetermined schedule, the predetermined schedule being changeable with an input device of said mobile wireless communications device; and

when it is determined that the tag data should be changed, communicate with the at least one NFC tag to change the tag data.

16. The non-transitory computer-readable medium of claim 15 wherein the predetermined schedule is based upon a number of device unlock operations since the tag data was last changed.

17. The non-transitory computer-readable medium of claim 15 wherein the predetermined schedule is based upon a passage of time since the tag data was last changed.

18. The non-transitory computer-readable medium of claim 15 wherein the mobile wireless communications device further comprises a memory configured to store office data; and wherein the at least one device unlock operation comprises unlocking access to the office data in the memory.

19. The non-transitory computer-readable medium of claim 15 wherein the mobile wireless communications device further comprises a memory configured to store home data; and wherein the at least one device unlock operation comprises unlocking access to the home data in the memory.