The Z-network - page 4 Now take a network of Z-devices as just described, with any combination of Z-wires and BT radios, at any number of locations within BT range of each other, and add anywhere amongst them at least one Z-device with a WiFi/internet capability, and do the same with another group of Z-devices (with the same customer id) at a far-off location anywhere else on the planet, and the two (or more) groups will further join up into a single even larger network. In short, all Z-devices owned by the same customer ID will form a single network, whether by wire, bluetooth, wifi, or other means, extending all across the planet. For example, if you have a Z-light bulb and a Z-potentiometer, you can send this command: pot.value_wheneverChanged -> lightBulb.brightness You can take this Z-pot, put it in your pocket and travel to a far-off city and turn it there. Back home your light bulb changes brightness. If your Z-pot has no radios in it, but only a Z-wire connector, you will have to connect its Z-wire connector to of any other Z-device's Z-wire connector at the remote location (with its same Customer ID). Or, if your Z-pot has a Bluetooth radio, it merely needs to be placed within range of any other Bluetooth enabled Z-device at that location. And if your Z-pot has a WiFi/internet connection, then it merely needs to be in range of a WiFi/internet connection, regardless of whether there are any other Z-devices in the area or not. Given the ubiquity of WiFi in the wild, a WiFi enabled Z-device is truly portable.