Data synchronisation

1. A method of controlling synchronisation of data between a first device and a second device comprising:

1) determining a property of the first device, the property being one of a location of the first device and a time at the location of the first device;

2) consulting a synchronisation rule associated with the data, the synchronisation rule including at least one condition dependent upon the property of the first device;

3) controlling synchronisation of the data between the first device and the second device in accordance with the synchronisation rule; and

4) identifying a change in said property and in response repeating steps 2) and 3);

wherein controlling synchronisation of the data is one or more of, causing the data to be removed from the first device, causing the data to be restored to the first device, causing the data to be encrypted on the first device, and causing the data to be decrypted on the first device; and

wherein the data to be removed, restored, encrypted, or decrypted is dependent on one of the location of the first device and the time at the location of the first device.

2. The method of claim 1 wherein the second device includes a memory including one or more synchronisation rules, the method further comprising: the second device determining that the synchronisation rule includes a condition dependent on a property of the first device, the second device transmitting the synchronisation rule to the first device, the first device applying the synchronisation rule such that the step of synchronising the data is in accordance with the synchronisation rule.

3. The method of claim 1 wherein the second device includes a memory including one or more synchronisation rules, the method further comprising: the first device performing the step of determining the property, the first device transmitting the property to the second device and the second device performing the steps of consulting the synchronisation rule and controlling synchronisation of the data.

4. The method of claim 1 wherein the second device includes a memory including one or more synchronisation rules, and the second device performs the steps of determining the property of the first device, consulting the synchronisation rule and controlling synchronisation of the data.

5. The method of claim 1 wherein the property is a location of the first device and the location is determined by one or more of: determining a GPS co-ordinate using a GPS receiver at the first device, determining the network operator that the first device is connected to, determining an SSID of a WiFi network visible to the first device, determining the first device's public IP address and determining the carrier id of a network to which the device is connected.

6. The method of claim 1 wherein the data is one or more of: an audio file, a video file, a text file, an image file, a folder containing one or more files, an entry in an address book, an email, an SMS message.

7. The method of claim 1 wherein the first device is a mobile device and the second device is a networked data storage.

8. A device comprising:

a memory including data to be synchronised with another device;

a processor to determine a property of the device, the property being one of a location of the first device and a time at the location of the first device;

an input to receive a synchronisation rule including at least one condition dependent upon the property of the first device, the device applying the synchronisation rule to control synchronisation of the data with the another device in accordance with the synchronisation rule;

wherein controlling synchronisation of the data is one or more of, causing the data to be removed from the first device, causing the data to be restored to the first device, causing the data to be encrypted on the first device, and causing the data to be decrypted on the first device; and

wherein the data to be removed, restored, encrypted, or decrypted is dependent on one of the location of the first device and the time at the location of the first device.

9. The device of claim 8 wherein the property is a location of the device and the location is determined by one or more of: determining a GPS co-ordinate using a GPS receiver at the device, determining the network operator that the device is connected to, determining an SSID of a WiFi network visible to the device, determining the device's public IP address and determining the carrier id of a network to which the device is connected.

10. The device of claim 1 wherein applying the synchronisation rule comprises one or more of the first device deleting the data, the device restoring the data, the device encrypting the data and the device decrypting the data.

11. A computer program stored on a non-transitory computer readable medium which, when executed on a device having a memory including data causes the device to (1) determine a property of the device, the property being one of a location of the first device and a time at the location of the first device, upon (2) receiving a synchronisation rule including at least one condition dependent upon the property of the first device, apply the synchronisation rule to control synchronisation of the data with the another device in accordance with the synchronisation rule, and (3) identify a change in said property and in response repeat step (2);

wherein controlling synchronisation of the data is one or more of, causing the data to be removed from the first device, causing the data to be restored to the first device, causing the data to be encrypted on the first device, and causing the data to be decrypted on the first device; and

wherein the data to be removed, restored, encrypted, or decrypted is dependent on one of the location of the first device and the time at the location of the first device.

12. A device comprising:

a memory including data to be synchronised with another device, the data being associated with a synchronisation rule including at least one condition dependent upon the property of the another device;

an input to receive a property of the another device, the property being one of a location of the first device and a time at the location of the first device;

a processor configured to apply the synchronisation rule to control synchronisation of the data with the another device in accordance with the synchronisation rule, and to reapply the synchronisation rule to control synchronisation of the data with the another device when a changed property is received at said input;

wherein controlling synchronisation of the data is one or more of, causing the data to be removed from the first device, causing the data to be restored to the first device, causing the data to be encrypted on the first device, and causing the data to be decrypted on the first device; and

wherein the data to be removed, restored, encrypted, or decrypted is dependent on one of the location of the first device and the time at the location of the first device.

13. The device of claim 12 wherein the property is a location of the another device and the input is configured to receive one of: a GPS co-ordinate for the another device, an identifier of the network operator to which the another device is connected, an SSID of a WiFi network visible to the first device, the another device's public IP address and determining the carrier id of a network to which the device is connected.

14. The device of claim 12 , wherein the processor is configured to perform one or more of, causing the data to be removed from the device, causing the data to be restored to the device, causing the data to be encrypted on the device, causing the data to be decrypted on the device.

15. A computer program stored on a non-transitory computer readable medium which, when executed on a device, the device having a memory including data associated with a synchronisation rule including at least one condition dependent upon the property of the another device, the property being one of a location of the first device and a time at the location of the first device, causes the device to, upon receiving a property of the another device, apply the synchronisation rule to control synchronisation of the data with the another device in accordance with the synchronisation rule, and reapply the synchronisation rule to control synchronisation of the data with the another device when a changed property is received from said another device;

wherein controlling synchronisation of the data is one or more of, causing the data to be removed from the first device, causing the data to be restored to the first device, causing the data to be encrypted on the first device, and causing the data to be decrypted on the first device; and

wherein the data to be removed, restored, encrypted, or decrypted is dependent on one of the location of the first device and the time at the location of the first device.