2. The method of claim 1 , wherein the event comprises a determination that the data has changed from a state since a last sent data was sent to the subscriber device.
2. The method of claim 1 , wherein the event comprises a determination that the data has changed from a state since a last sent data was sent to the subscriber device. 3. The method of claim 2 , wherein sending the data is suppressed if the last sent data was sent less than a threshold interval prior to the event.