Merging WiFi VoIP Into Cellular Service

Anonymous Coward writes "The New York Times (registration required) reports that Motorola, Proxim and Avaya are expected to announce today that they will jointly develop technology to allow wireless communications to jump between networks without interruption. This appears to involve making use of WiFi for phone service where it's available, thus converting WiFi hotspots into congestion relief for overloaded cellular networks, and, of course, making cell phones into WiFi terminals."