Why can't our refrigerator fire off an urgent email when the milk has gone lumpy? And the toilet paper dispensers warn us it's empty - before we sit down? And when will our microwaves run BitTorrent? EUREKA, the European R&D network, knows how badly you crave networked objects, and rather than mock you, it's moving to help. To that end, it has developed small, inexpensive, battery-powered sensors able to link everything from consumer electronics to environmental monitors to factory robots - creating the much-anticipated "Internet of Things." But unlike the
