Filed under: HouseholdThe Z-Wave standard for home automation has already proven itself to be a pretty versatile bit of technology, and it looks like its now set to ensnare yet another part of your house, with lock-maker Schlage set to introduce some web-enabled Z-Wave door locks. Those will let you lock or unlock your door from your PC, cellphone or any other wireless, web-enabled device -- or, of course, from the lock itself. That's done with the aid of a Z-Wave gateway that connects to your router, which relays the RF signals to and from the lock (or one of up to 256 other Z-Wave devices), and gives you the added benefit of extending the life o